I planning a climbing trip to the Yosemite Valley in a few weeks, and I was wondering if you have any recommendations for a hydration pack I could use while climbing. I would use it to also carry a small headlp, rainjacket, and a few energy bars. I looking for something low profile that will not get in my way while climbing. Anything fit the bill? Alan Locust, New Jersey

My husband and I are having an argument about our 20-year-old down sleeping bags. The bags in question are Blacks Icecap XL mummy bags. I've recently being doing some fall camping and find that I get quite cold some nights, leading me to surmise that these sleeping bags have reached the end of their days. My husband says it's just my age, as he doesn't find them cold. Now I know I shouldn't bother arguing with him and just go out and buy myself a new sleeping bag, but I want you to tell him that down sleeping bags do "die" eventually. Can you back me up? Carol Port Moody, British Columbia

I have a medical condition known as Raynaud's, which basically means that I have real problems staying warm in temperatures below 50 degrees. This past winter was a killer for me. Unfortunately I can't hole up inside during the winter as my 100-pound insulated dog needs to walk (and loves the cold). What do you think would work best for me? I assume down, but the women's down parkas don't seem to be that warm. Faith Reston, Virginia

What does one do when his hero lets him down? Last fall you spoke highly of the St. Moritz Pathfinder TI watch. Well, let me tell you, the Gear Guy is fallible. This watch has been a huge letdown. The "glow factor" of the numbers is terrible, the alarm is barely audible, and the service is less than acceptable. I sent it in for warranty repair for its water resistance, being sure to mention the other factors, and the service was very slow and they never even addressed my other concerns. I think you may have made an error! (I know, hard to believe.) Tim Moose, Wyoming

Thanks for asking the Gear Guy a question. Stay tuned to the Gear Guy’s column for your answer. He should get back to you in about a week. Of course, while he’d love to answer everyone’s questions, he’s so busy testing equipment that he…

I was rock climbing in Australia earlier this year when I fell and wrecked a lumbar disc. I'm having surgery to decompress the spinal nerve in a couple of weeks (a lumbar microdiscectomy), and I'm itching to get back into trping (you call this "hiking") and climbing and so on. Since physiotherapists don't know much about backpacks, I'm wondering if you can help me: Is there a backpack that is better for your back (i.e., one that doesn't compress your lower back too much)? I currently use a fairly simple 60-liter New Zealand-made pack by Cactus Climbing. Karen Wellington, New Zealand

I want to buy some new cross-country skis that I can use for both touring and downhill, maybe something along the lines of the Karhu Catounts. While these seem to work well for touring on ungroomed trails, would these also suit for telemarking on blue-square trails? Rusty Cresco, Pennsylvania

Can you recommend a good cross-country skiing package that's suitable for both groomed trails and backcountry use? John Duluth, Minnesota

On extended backpacking trips, does it make sense to pack both a soft shell and a waterproof jacket? Or just take along the rain jacket? Also, since I come from Europe, I'm a little bit confused about what exactly cross-country skiing is. I know what telemarking is (those graceful people on the piste) and also langlauf (with the thin skis), but what is cross-country? Karl Cottenie Leuven, Belgium

What's the best way to clean my hands in the wilderness prior to handling contact lenses? My waterless hand sanitizer warns against eye contact and I don't want to use stream water.

My daughter is flying to Europe this fall and is looking for a good all-around pack for all travel essentials, plus a computer. She is small-fred, five-feet four-inches tall, and weighs 110 pounds. This is the only luggage she is taking and she plans on being there five months. The packs needs to be durable and easy to carry. What should she be looking for? Janet Boise, Idaho

I've been looking to buy a (first) sea kayak. I've tried a number of different models and types and have come up with a tentative short list: the Synergy by Northwest Kayaks, the Corona by Perception, the Sirocco by Current Designs, and the Cortez by Dagger. (I haven't tried the last one out yet but I've included it because of Outside's recommendation.) If you were a six-foot, 190-pond guy (and maybe you are) what boat would you consider to be the best value? I'm only considering plastic boats but I want to get the skinny on workmanship, materials, and design. Are these four companies equally regarded? Are the boats? Brian McCarthy Glendale, California

Oh Great Gear Voice of the Heavens, What's a nice, dry, two-person, three-season tent with two doors and vestibules? My current tent is a Sierra Designs Orion AST. It's a very well built tent and stayed completely dry in a very wet trip to Deer Lake in Olympic National Park. I like being able to use only the rain fly and ground sheet as well as the window in the fly. The problem is that the very slanted door lets stuff collect in the tent entrance and makes zipping and unzipping tough. It also makes the vestibule useless for anything but boots. I hope to get a new tent with two doors that are straight up and down, but don't want to lose the high quality and rain-proofness. I willing to give up a little in weight if I could get a ground sheet that covers the floors of the vestibule as well. Chris Barnes Bremerton, Washington

I've been skiing for years and haven't needed to buy new thermal underwear in a long time. But now that I'm ready to replace it, several new materials are on the market. I know I don't want cotton, but what about silk? Wool? Or should I just stick with polyester? y Kuntz California

I'm looking for a mountaineering boot for tackling some of the Lower 48's fourteeners. I've reviewed the Koflach Degre and the Asolo Guide, but I'm also interested in some of the newer leather boots, like the Scarpa Cerro Torre Thermo. Have the new insulated leathers finally become an acceptable solution, or should I stick with doubles? Matt San Ron, California

Are candle lanterns safe to use in tents for light? Obviously you'd want to keep an open fle away from the tent walls, but are they as safe as a battery-powered lantern? John Bergquist Corvallis, Oregon

I'm 55 and like to ride bikes. Here near Lake Michigan in late spring, it's often sunny and cool. I see a lot of die-hard bikers wearing tights, but I'm not interested...is there anything else I can wear? I tried tennis warm-ups, but they're too slippery on the bike seat. Stu Highland Park, Illinois

What's the best crampon for the LaSportiva K3 boot? Can I use semi-rigid crampons with them to climb vertical ice? I need crampons for that and glacier approaches but am afraid that if I get a fully rigid crampon I will get to much balling-up effect with the snow. Joe Roop Prescott, Arizona

I have a 15-year-old Peak 1 stove that still works great. I was wondering if I could use cheaper unleaded gasoline (about half the price of Coleman fuel) without blowing me or my friends up. Or do I need to get a newer model made for both white gas and gasoline? J. D. Craft Lancaster, Ohio

I have a simple question. I dried my jacket on a high temperature in the dryer. Everybody tells me I shouldn't have done this, but how will it affect my jacket? Adrien Lancaster, United Kingdom

G'day Gear Guru, I've noticed a couple of innovative water-purifiers that incorporate the filter mechanism directly into the cap of a light, convenient, and squeezable water bottle. Models by Orinoco and SafeWater Anywhere make lofty claims of filtering and purifying the nasties better than traditional pump-style filters; the SafeWater model even has a filter cap that fits onto Nalgene bottles. Is there any point to lugging around our old pump filters anymore? Lange Sydney, Australia

Oh Gear Oracle, I have a problem with a build-up of moisture within my mittens, not from rain or snow, but from my own perspiration. This is especially true during snowshoeing trips. I was wondering if there are any shells that have little or no insulation, allowing me to layer them inside and increase the breathability of the mitten. Dennis Portsmouth, New Hampshire

Oh Gear Guide, you have failed us! Over and over I have heard you espouse the quality of the Yashica, so I decided that the T4 was the camera for me. Unfortunately, after hours of searching, I find out that the T4 has not been made for years! Just recently, you suggested the camera but didn't mention that it would be impossible to find. With the T4 no longer on the market, what kind of camera would you suggest? Mike Newark, Ohio

At what point, if ever, should your boots be replaced? Is it a question of mileage, time, or condition? I've had my boots (L.L. Bean Knife Edge, leather) for a number of years. They are well maintained and comfortable. Is there a point where the boot does not perform its support function and the trade off between comfort and support (in favor of comfort) is not worth it? Jim Comerford Wyncote, Pennsylvania

Your Gearness, I'm in desperate need of your expert advice. After two major knee surgeries involving saws, metal plates, and screws, I have suddenly become an advocate of trekking poles. I own a set of Master Kompressor poles with comfortable handles and a useful shock-absorber option. However, I've been tempted by a pair of Leki Ultralites, which are six ounces lighter but without the shock absorbers. At five-foot-one and about 120 pounds, do I really need poles with shock absorbers, or is it a waste of money for me? I have my sights set on the Grand Canyon this spring and would like to have time to "road test" a set of poles before then. Paula San Diego, California

I have been trying to decide between the PUR Guide water filter and the MSR MiniWorks, although I have heard that the MSR clogs less and is cleanable. However, the MiniWorks' high pump per liter ratio has turned me off, especially as the PUR Guide boasts a more efficient output. I will be using the filter mostly in high alpine areas where the water is fairly clear of mud and silt. What are your thoughts? Jim Huntsville, Utah

What are the key factors one should take into account in purchasing a road/touring bike? Brent Ithaca, New York

I want a chest pack to carry my Pentax 67II camera and its lens. It will need to have padded shoulder straps and a strap to hold it tight around my waist. Any ideas? Kiim Clackas, Oregon

I've been looking at water purifiers and have narrowed it down to two-the First Need Deluxe and the Sweet Water Guardian. I've read some on both and I've heard of the Guardian breaking on hiking trips and not being field serviceable. I haven't been able to get much info on the First Need Deluxe, only that is clogs. Which do you think is better and why? Kyle Waco, Texas

Is it better to roll or stuff a tent? Kye Eugene, Oregon

I'm considering purchasing a food dehydrator to help lighten things up on long hikes and bike rides. My research suggests that the best options are the erican Harvest or the Excalibur, but I have no idea of how these compare or if there is a better choice out there. I'm comfortable selecting the price and capacity of the model, but at a loss when it comes to the other nuts and bolts of the subject. Do you have any insights that can inform my decision? Chuck Freeport, Maine

Why are mountaineering leather double boots such as the Boreal G1 or Vasque Vertical such a niche product? They are supposed to provide as much warmth as plastic double boots, without any the discomfort of wearing something fit for Frankenstein. These boots have summited Denali and Everest, yet event the "experts" at specialty gear stores frequently don't know about them. What's the catch? Andy Veres Alexandria, Virginia

Great Gear Guru: My hips hurt when sleeping on the ground, whether I've just humped a 60-pound pack or walked into my backyard. I currently use a Therm-a-Rest GuideLite sleeping pad. Do I need a new state-of-the-art pad, or should I just chalk it up to old age? Brad Sioux Falls, South Dakota

I'm going to be spending a year working in Kenya and need to find a sleeping bag. I need to get a synthetic bag, but I want one with mobility since I move around a lot when I sleep. I don't like the constriction of most bags. It also needs to be fairly compact. What do you suggest? Paul St. Louis, Missouri

I camp in the desert in the winter when temperatures can range from zero to 90. My main concern is the wind, which can be downright chilling but also kick up sand. I'm looking for a tent that will shed wind and also not flap like the sail of a 12-meter yacht when it tacks. I'd really like to sleep without the noise. Can you suggest a suitable three- or two-person tent, preferably something on the roomier side? Chip Cairo, Egypt

I just read your reply in reference to a question about sleeping bags for a big guy, and I have similar question. I only five feet, ten inches tall, but I have broad shoulders. I trying to find a mummy bag that is roomy enough through the shoulder area to move in. Do you have any recommendations for good but not too expensive down bags like this? Tad C. Helms Tallahassee, Florida

What's a good internal-fre backpack for someone just getting into backpacking (two- to four-night trips)? I don't want to spend more than I need to, not knowing how much I'll end up liking backpacking. (I've strictly been a day hiker in the past.) However, I don't want to buy junk that won't work properly and will ruin my trip. Kris Newbury, Ohio

What is the best hat for summer backpacking? Cotton baseball hats are too hot, too sweaty; synthetic caps are a little cooler. But how about a straw hat? In particular, the L.L. Bean Summer Straw Hat that supposedly folds up and packs easily? By the way, your reviews are probably more useful and readable than all the others. Congratulations, and thanks! Marshall Atlanta, Georgia

I'm in need of a bigger climbing backpack, but I'm facing two problems. First, I also need a bigger backpack for weeklong trips; my climbing partner says just get one huge bag, just don't fill it up. So, one bag or two? Second, how big? I a five-foot-six, 130-pound female, and I think I require at least 3,000 cubic inches for my climbing needs. Kendra Boise, Idaho

I've been moving slowly into the lightweight crowd and trying to get my week-long, summertime load below 30 pounds (I live in the Midwest, so a good portion of that is DEET!). I can make it, except for the pack itself. Are there any good lightweight packs? Is this a good place to save weight? Most that I've tried may weigh less, but they make the load seem heavier to me. Tim Taylor South Bend, Indiana

Are there poles that could do double duty for downhill skiing and trekking? Or is that too much to ask from a set of poles for around $100? Dan Pittsburgh, Pennsylvania

My family of five—myself, wife, and three decent-sized kids—plus the dog would like to go snow camping, and I think I've got everything covered except the tent. As for cost, we'd prefer to be comfortable and broke over rich, frozen, and miserable. Unfortunately, I can't seem to find a suitable five-person tent—MSR's StormKing comes close, but only allows 12 square feet per person. I have concerns about splitting the family into two tents in potentially nasty weather. Do you have any advice? Nathaniel Nevada City, California

Are there any objective tests comparing the hard- and soft-shell products of different gear manufacturers? Yes, there's a huge ount of marketing hype easily available, but beyond XCR's assertion that it's "25 percent more breathable than standard Gore-Tex," there doesn't seem to be any hard numbers comparing materials. This is surprising when you consider how much consumers are prepared to pay for the latest and greatest. Jeff London, United Kingdom

Dear Gear Guru, Each year I spend more and more time engaging in technically demanding backpacking, backcountry skiing, and mountaineering trips into the remote backcountry. Due to my exposure, the natural dangers of the mountains, and the probability of accidents, the need for a reliable and durable communications system has arisen. Do you know of a system that has long-range communication capabilities and can withstand the needs of being both portable and durable? Is a satellite phone the answer? As always, I look forward to the wisdom of your responses. Sean Constine

I would like to buy a digital camera to bring on climbing, canoeing, and hiking trips. I had been planning to buy an SLR, but I've recently been tempted by digital cameras and their ability to make you impulsively take snapshots. What factors other then weight and picture quality should I consider? Any help you can give me would be much appreciated. Eric Winnipeg, Manitoba

I live near North Carolina's Outer Banks and want to purchase a kayak for island hopping. What boat would you recommend for a beginner paddler? Jie Beaufort, North Carolina

Does anyone make a waterproof tight for inclement weather running/cycling? InSport used to make one, but I guess it went the way of Activent. A European company supposedly makes something called the RaidLight tight, but I can't seem to find anyone who carries it. Erin Skowran Belleville, Illinois

What do you think of OR's Pulsar Parka? I see the Outside Buyer's Guide gave it a "Drool" award. I ask because I can't find it for sale at any of the "big" outdoor retailers. I have hunted every major Web site that carries OR products and not one of them carries or even advertises this jacket. Was there some problem with them or why does no one carry them? Thank you for your response. Craig K. Noble Bliss, New York

What have you heard about the new Eureka Zeus Exo1 single wall Tent? I a big Sierra Design Meteor Light CD fan but need a very lightweight tent for a solo through-hike this summer. Thanks for your help! Lora Cochran Cody, Wyoming

Can you shed some light on headlps for a well-intentioned fanny-pack kisser? I'm after a good, bright headlp for hiking and backpacking. I have an old Princeton Tec Solo, but thinking of upgrading to a Black Diond Gemini or one of the Petzl models. And there I was thinking that the days of headgear obsessions ended with high school. Jay Eugene, Oregon

I'm planning a trip to the Bahas this summer and in the market for a reliable diving watch. Can you recommend something that won't implode after the first ten meters and won't shatter my bank balance? Alison Austin, Texas

My husband and I frequently take our two dogs on our camping trips, in all sorts of weather. However, as much as I love them, after a day of hiking on muddy trails I'm often less than enthused about welcoming two balls of mud into our tent (one 20-pound beagle-ball, the other a 60-pound lab-type-ball). We have daydreamed about a lightweight pouch or lightly insulated sleep sack for our dogs. I ready to start experimenting with my sewing machine, but a friend told me there's a company that makes this stuff. Is this true? And if so, is this gear practical? Toni Schenectady, New York

I'll be going to England, Ireland, and Scotland soon and will spend most nights in my tent or in hostels. My question for you is: what kind of pants should I bring? I want them to look good (since I'll be touring museums and all that), but still be lightweight and durable, since I'll be using these on backpacking trips in the future. I think I've narrowed it down to two choices: Ex Officio Explorer Pants and Royal Robbins's Go Everywhere Pants, but I can be persuaded to change my mind. My girlfriend (who goes with me on many of my trips) thinks zip-off pants look completely dorky, so I'm not interested in those. Thanks for any information! Steve Bockhold Memphis, Tennessee

Are there any leather boots that will hold up on the "big peaks" like Denali or Everest? I planning a trip to Denali and would really like to go with leather boots as I've never liked plastics. Any thoughts? Jeff Norfolk, Virginia

What are the best boots for snowshoeing? I've tried winter boots and cross-country ski boots, but none of these fit well enough in my snowshoes. Jean San Francisco, California

I going kayaking in two week's time to Big Bend. As I've never done it before, I'd like to know what gear is needed so that I don't freeze in the water. Luis San Antonio, Texas

Would you recommend a waterproof poncho for backpacking? My friends and I are thinking of doing the West Coast Trail on Vancouver Island this summer. I have heard that even the best Gore-Tex fails under the onslaught of seven days of heavy rain. Previous trail users have suggested carrying a waterproof poncho to cover you and your pack. What are your thoughts on this idea? Chris Barnes Silverdale, Washington

I just recently got into mountaineering and assing all the gear needed to pursue my different interests. I have a lot of the basics and now its time to get some boots. I need a four-season boot for both general mountain travel and technical ice. In the grand scheme of accruing mountain gear, boots account for a pretty hefty chunk of change—especially if you buy three pair of boots: one for three-season mountain travel, another for winter mountain travel, and the third for technical ice. Much more appealing would be a single pair of boots that could do all three. Does such a boot exist? If not, can I get away with two pairs of boots? I'm just looking for a way to escape throwing down $1000 on boots. Josh Hattan Lincoln, Nebraska

I looking for a winter jacket that some may call extreme. I bought a down jacket a few years back that was supposed to be good for -40 degrees Fahrenheit but whenever it is around below zero and a little windy I feel like I have a light fall jacket on. My dre coat would be a down jacket rated to -70 (then I might be warm when it is -10). To top it off I would also like it if it had a fleece liner for extra warmth that I could take in or out depending on the weather. Is there a place that either makes such a jacket or could custom make one? So, I too extreme? Glenn Mulno Needh, Massachussets

I need a bike for commuting that I can use with panniers. Should I go with a traditional touring bike, or should I use one of the hybrids similar to a Trek 7700 FX? I'd like to spend less than $1,250 if possible. I have found some bike commuting pages, but they don't give much guidance on, of all things, bikes. I'm sure you have more than enough time in the saddle to offer some guidance as well as some personal preferences. Tim San Jose, California

I was out hiking in the west Texas desert a few months ago during a delicious spate of rainy summer weather. I was wearing a light pair of boots and found myself slipping and sliding all over the wet rocks. Crawling on my hands and knees over boulders is not my idea of fun, and it really ruined my week. I'm now in the market for a pair of light "day hikers," with soles that'll give me some traction on wet rock. Any suggestions? Paul San Antonio, Texas

I'm looking for the perfect sea-kayaking tent. Currently I'm using an older The North Face Geodesic three-person tent: it's great but is on the large size and tends to leak when not staked out. So, I'm looking for something that packs into a small size, can hold more than one person's gear, sets up easily, doesn't require much staking (sand doesn't hold stakes very well), and is very waterproof. Marshall Watkinsville, Georgia

I recently started taking my dog with me while backpacking, and he loves it. But, should I worry about him drinking from lakes or stres? Should I filter his water for him? Kevin Mississauga, Ontario

I have been looking at jackets and vests from GoLite, and they all seem pretty cool. Logic tells me that their stuff probably doesn't keep one as warm as the heavier stuff other companies offer. Can you confirm that? Matthew Sattah Chattanooga, Tennessee

Do you know of any fully waterproof/breathable gloves made of two- or three-ply Gore-Tex? I'm looking for a glove that I can use for mountain biking when it is 40 to 50 degrees outside and raining hard. I'm not looking for a full-blown expedition climbing-type glove because I won't be out when it's 0 degrees. I've seen the Seal Skinz waterproof gloves but the outside material will retain water pretty much like a sponge. Steven Fleisig Upper Montclair, New Jersey

I've heard that deet will destroy nylon and nylon-blend materials such as tents and quick-drying garments. Is there an effective insect spray that can be used on these materials? Mike Tpa, Florida

There is a well known canoe camping writer that advocates using a plastic ground cloth on the INSIDE of your tent. He says that not only will you be drier in a downpour, but that it will protect the tent floor just as well as if it is placed underneath the tent. What are your thoughts on this subject? Dave Cbridge, Minnesota

I looking to buy a new tent for canoe tripping in the barrens of Canada's Northwest Territories. I expect lots of wind and rain so an expedition tent would be best. But what is an "expedition tent" anyway? Robert Guelph, Ontario

In answering the question, "What's the lightest three-person tent available?" a few weeks ago, you missed by far the lightest candidate: the Stephenson WarmLite! It can weigh as little as 3.25 pounds and has 52 square feet of space! Dave SteinerNew York

What type of bag would you recommend for climbing Denali? Down or Polarguard insulation? What specific bag would you recommend? What about as far as clothing—layers, brands, models etc.? Would you recommend a full down suit? Or a down jacket and either down pants or a shell with layers? Bob Grish Boise, Idaho

I planning a weeklong sea kayaking trip in northern Quebec. I (and my backside) would appreciate any of your thoughts on a decent portable sleeping pad. Is inflatable the way to go? And what about length? We anxiously await your deliberation. Nicholas B. Westmount, Quebec

I'm a student who's planning a summer road trip to visit some neighboring states and maybe even Canada. I hope to leave the truck for a few days at a time and do a little backpacking, so I'm looking for a pack. Remember, I'm a starving college student, so nothing too expensive please! Mike San Luis Obispo, California

I have a new Dana Design Shortbed pack, but after packin' for a long ten miles, I noticed that my hands and fingers were swollen. Was this just a bad pack fit, or was it too much weight for the long haul? Ray Kuna, Idaho

I have a Gregory Palisade pack and love it. A number of recent comments and reviews of the Dana Designs Terraplane pack have suggested it is the best pack on the market. However, I find the price of over $400 extreme. Is there something inherent in this pack that would suggest such a premium over the $200 to $300 internal fre packs in its category? David R. Eitemiller Colorado Springs, Colorado

Can you recommend a sturdy sack that will protect a backpack (with tent and sleeping pad strapped on) when it's checked as luggage on an airplane? David Oakland, California

What's the best tent for winter camping? I'm interested in a two- to three-person tent that's lightweight, packable, and available at a low price. I will be spending time in northern Massachusetts and the White Mountains this winter. I've been looking into single-pole shelters like the Black Diond Betid ($98), and while comfortable with not having a sealed floor, I worry about water seeping in. Do these tarps really work? Are they reliable? Is it possible to find a reliable four-season tent under $200? Boaz Sender Boston, Massachusetts

I need to find a tent for winter camping and mountaineering. Living in Oregon I intend to stay within the Cascades. I have narrowed my search to the Fusion 2 and the Fury 2, both made by MSR. They fall into the same weight/price/size category. The Fusion is a convertible tent while the fury appears to be a four-season tent. Given the conditions I'm expecting to face, which tent would be the ideal choice for me? Is the Fury too much tent, is the Fusion too little? Is there another tent that you would recommend? Kevin Portland, Oregon

I know it's only August, but I have recently taken up running and looking ahead to the looming Ottawa winter. In preparing to outfit myself, I have been doing some reading about soft-shell jackets. The claim seems to be that I won't need to do the usual layering job with one of these—the soft shell can do it all. Is this right? Would a soft shell be the answer to a big part of my winter running wardrobe? Eric Ottawa, Ontario

Where can I find a waterproof video camera, for filming surfing and other stuff? Luke Ft. Myers, Florida

We know your favorite sub-$500 camera is the Yashica T4 Super. But, what are your favorite point-and-shoot cameras for $500 and above? Roy Boston, Massachusetts