Can you recommend things to look for before purchasing a used bike? I interested in several Trek models and have found a couple of used bikes that appear in good shape. I would really love to save a few dollars by buying used and getting more bike for my buck. Carter Arlington, Virginia

I'm going on a climbing expedition where we'll be ascending into increasingly colder temps. I'm planning to take two sleeping bags, transitioning to the warmer one as we ascend, then using both at high altitude. Are there any drawbacks or cautions to doing this? How can I estimate the temperature rating of the two bags combined? Vincent Salem, Oregon

What's the best car-camping tent for me, my wife, our daughter, and, if he's good, a dog? We prefer two doors and an aluminum frame, but we're flexible. Henry Davis Willisville, New York

I own a Feathered Friends Swallow down sleeping bag with the regular nylon shell. I was wandering through the gear store the other day when I saw a product by Nikwax that was used to waterproof down garments, including sleeping bags. I would love to give my bag a waterproof treatment to keep the down perfectly dry, but I'm reluctant to do anything to my beloved bag in fear of daging it. What's your opinion of these products? Thanks Mike McLaughlin Pittsburgh, Pennsylvania

I'm looking for a lightweight, compact "kitchen" for holding dishes and utensils while car camping. Can you recommend some sort of canvas or nylon box thingy? Vickey Freedonia, New York

I interested in buying a quality set of boots and skis, primarily for Vermont and New England skiing. Problem is, I wear a two-centimeter orthotic insert in my right shoe that corrects a leg length problem and heavy over-pronation. Can I get this custom built into ski boots? Any other options? Also, what's your opinion on the softer boots like the Atomic Beta Ride 10.50? Are they worth the $600? What is the best ski for varying New England snow conditions (i.e. one day powder, next day ice)? Walt McMann Hden, Connecticut

I would like some advice on a permanent or removable roof rack, mainly for carrying several pairs of skis on my Isuzu Trooper. Isuzu sells a rack for around $350, but I'm sure I can find something better for the se money or even less. John Boise, Idaho

I looking to purchase a pair of snowshoes and wondering what length/style I should get. I'm five-foot, 11-inchess tall, and weigh about 180 pounds. I most likely will be using the shoes primarily for day hikes so I would probably be wearing a daypack and possibly carrying my skis. Scott Garvin Boston, Massachusetts

From what I've read, your gear reviews are right-on, so I seek your help finding a hydration pack that can hold ultralight gear for overnighters, as well as up to 100 ounces of water. I hope to use such a pack for mountain biking treks as well, so it'll need to have a tight fit and good suspension system. It's proving difficult to find something to meet all these needs, although I noticed you recommended the Ultimate Direction SpeeDemon to a trail runner in January 2003. Is this pack suitable for mountain biking? What about other possibilities like the Ultimate Direction WarpSpeed or the CelBak Peak Bagger? Todd Alpharetta, Georgia

I'm planning to do some solo hiking this summer and would like to take along more than a bivy bag for shelter. I'm looking for a three-season tent that maximizes room (I'm six-feet tall) and minimizes weight. Perhaps a Walrus Microswift or the Sierra Designs Ultra Light Year? I'm not finding too much information or many reviews on the Net, and those that I do find are outdated. Any advice? Don Sherwood Park, Alberta

My girlfriend is hoping to go on a ten-day wilderness orientation trip for UC Santa Cruz put on by Outward Bound. The problem is that she has a bulging disk in her lower back. The sports medicine doc she's seeing says that she should be OK, but I'm not so sure. What are your recommendations for a pack? External-fre packs put more of the load over your hips, right? (She's five feet, three inches and weighs about 100 pounds) Colin Wood Colfax, California

OK, this is a serious question. You seem like the kind of guy who does a fair amount of biking in cold, windy places. I've recently started to use my bike to commute to work and have noticed a "small" change in a very personal area. The wind goes right through my pants, and when I arrive at my location my little guy is tucked away like a scared turtle. This isn't a real huge problem, just inconvenient and uncomfortable. Do you know of any underwear or pants that could help fight this problem? Karl Rostock, Germany

I wondering what binoculars you'd recommend for ge viewing in Africa. This will be for use on open plains and in thick bush, both when I'm on the go and standing still. I'm considering either the Leica Duovid 8+12x42's or Swarovski EL 8.5x42's. Bertus Calgary, Alberta

What's the difference between a bivy bag and a tent? Which would be a better investment (I'm thinking of room for two people here)? Noel Muscutt Louisville, Kentucky

I've recently signed up to do the San Francisco to Los Angeles Aids Lifecycle in May. I have done some mountain biking in my past (novice level) and taken spinning classes for years, but road biking is new to me. I decided to buy clipless pedals and tried out my shoes (Sidi) in a spinning class a few days ago. I was in pain—my calves crped to a point where I thought I would have to putate—and the outer side of my left foot was aching. What is going on? Are the shoes too small/narrow? How should I go about finding the right pair without wasting a ton of money? I really need advice. Joe Ashleigh San Francisco, California

I've read that good husbands buy gifts for their wives after the birth of a child. So, being a good husband, I'm thinking of getting a cyclocross bike—for me. Hear me out. Because of the recent arrival of our beautiful little miracle, I'm not going to mountain bike (that's one bike) or commute (that's another) as much as I used to, and probably won't be doing a whole lot of road riding (a third bike I was hoping to get), either. Plus, the missus would like me to pare down my belongings to make room for strollers and such. So, can I get by with one cross bike (sub $1,000)? I'm sure my wife will thank you. Michael Minneapolis, Minnesota

I would like your opinion on the Grigna 2800 trekking boots by an Italian company ned Armond. My main concern is the long-term quality of the boots since Armond is not a well-known brand and their boots cost about a third less than those made by more popular companies. I intend to trek to the top of Kilimanjaro this year. Ngoc Dung Phung Montreal, Quebec

What do you think of the new mohair socks on the market? Are they as warm as wool socks? Are they itchy?" Alexander Do Toronto, Ontario

Will salt water break down Gore-Tex and other waterproof-breathable fabrics? (I've heard tales of salt spray drying in the fabric and grinding away at it from the inside like tiny saws.) Is there a better choice in outerwear for kayaking and sailing on the Maine coast? Stephanie South Thomaston, Maine

I'm completely new to backpacking and worried about buying gear from just anywhere. Here in Canada, MEC (Mountain Equipment Co-op) supposedly carries nothing short of the best quality equipment and the thought of going to just one place for all your needs sound really nice. Would you, with all your experience, trust MEC for all your needs as much as everyone here seems to? Or do I have to shop around for everything separately, looking for reviews and such, and then spend tons of money in U.S. stores due to the crappy exchange rate? Your answer is greatly appreciated. Tatiana Calgary, Alberta

Is there a watch out there that is a dive watch and also an altimeter watch for skydiving? Ryan St. Petersburg, Florida

I enjoy weekend hiking and overseas travel. At the se time, I want to look good when I dress casually. Because of this, I spent $400 on a Patagonia XCR Gore-Tex jacket when Patagonia opened its first branch in Hong Kong last year. It's a very expensive outfit, but I do like it. However, after reading all your gear recommendations, it seems I could have bought something similar or even better. So, I'm now thinking of buying a fleece jacket for cold weather. Do you have any cheaper recommendations? June Hong Kong

Do you know where I can buy one of those Mountain Hardwear sleds? Who else makes sleds for hauling gear? Thom Salt Lake City, Utah

I'm going hiking on the West Coast Trail, and my boots have Vibr soles that are very slick on wood when it's wet. Since it constantly rains on the West Coast and I'll be traversing many wooden bridges and ladders, I was wondering if you could suggest a boot with a sole better suited to wet conditions. Dan Ottawa, Ontario

I work in the movies, and I need to find a good photo of a crevice ladder and then purchase one in Canada. Can you help me? The Props Guy Whitehorse, Yukon

Hey Gear God, Help me find the perfect scrambling boots! I love my old Asolo backpacking boots. They never needed breaking in, and after years of conforming to my feet, they're about as close as you can get to slippers and still be boots. Alas, they don't edge worth a darn. I need a 3/4- or full-shank boot that is made for wide, high-volume feet and is crampon compatible for alpine scrambling. I bought a pair of Solomon Super Mountain 9s online because they were a great price. Dumb move! They perform great and are the right length but they squeeze my feet like sausage casings. Is there a happy medium between my slipper Asolos and those sadistic Solomons? Julie Busse Seattle, Washington

Help, Guru King! What's the best trail running shoe I can use when wearing a 30 pound pack and covering around 20 miles a day, on and off trail? I use Vitesse shoes right now, but the bottom of my feet get sore from traveling on rocky terrain. I have been looking at a number of brands and have tried calling their product develoent divisions—but it's hard to contact those folk! Peter Belmont, California

I just bought a pair of glacier glasses on eBay that don't have a brand, but they do have side shields and the lenses seem quite dark. However, I don't know how powerful they are at blocking ultraviolet light. Would these be suitable for a trip to Mexico's Pico de Orizaba? Eric Plymouth, New Hampshire

For the man who has every item of biking gear imaginable (judging from the mountain bikes, panniers, and lights littering our garage), what's the perfect Christmas gift for my husband, one that will even have Santa's elves guessing? I'm looking to spend up to $100. Janet Atlanta, Georgia

I a member of Vail Mountain Rescue Group and have been nominated the "gear girl" in charge of finding a good windstopper fleece jacket for our te. We are looking for something comfortable, flexible, and warm, but that's not too bulky and stands up well in the cold (one of our members complained that the Lowe Alpine version gets very stiff in the cold). Any suggestions? Leslie Vail, Colorado

I'm a middle-aged backpacker trying to lighten my load. I'll will be "climbing" Mount Shucksan in Washington this summer with a guide. A member of our group maintains that Stubai makes a pair of multi-purpose, lightweight crampons that are great for any boot. I'm wearing Asolo Fusion 95 GTX, which I really like, and these crampons are supposed to be okay for these boots. At best, I'll only be doing one climbing trip per year, but would like a pair of lightweight crampons for crossing the occasional snowfield in the Northwest. What are your thoughts about the adequacy of these crampons (and boots) for a non-technical climb such as the one on Mount Shuksan? Don Uslan Seattle, Washington

What's the deal with waxed cotton raincoats manufactured by Barbour in England and Filson in Seattle? Although they don't breath well and would not work for high output activities, I have run into users who rave about their water repellency and durability, tempting me to buy one for around town and short hikes carrying minimal loads. Steve Albany, New York

While hiking I've noticed that many hikers are now using alcohol stoves. Is this a better way to travel? Also do you know where I could find instructions to make my own alcohol burning stove? Chris Smithsburg, Maryland

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

I'm looking for an ultra-lightweight three- to four-season ski touring tent for spring in the Sierra, though it'd be nice if it could handle some winter weather also. I HATE carrying a lot of weight ski touring. Any ideas? David Hunn Long Beach, California

What gear do I need to climb K2? Just kidding! With winter fast approaching, I'm thinking about backcountry skiing again. I take avalanche safety VERY seriously and therefore take every necessary precaution. That said, accidents do happen, so I'm looking to buy an avalanche beacon just in case. I'm interested in the Tracker DTS, but how does digital technology fare in cold environments? I've also heard that earlier Tracker DTS beacons had problems with the unit switching to "receive" mode if the wearer's body pushed up against the toggle switch. Is the Ortovox F1 Focus a better, more reliable choice? Michael Vancouver, British Columbia

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

What's a good, moderately priced tire for mountain biking in the snow? I'm not looking to spend a fortune for a studded snow tire, just something with better traction that I can use in the spring as well. Paul Patterson, New York

What is your opinion of two-way radios for climbing and skiing? What features should I look out for when selecting one? Tjaard Breeuwer Eindhoven, Holland

Are there any high quality heated mittens on the market? My girlfriend suffers from Raynuad's and needs the warmest possible solution for skiing. You help is greatly appreciated! Chris Arlington, Massachusetts

Which is the best for weight-to-warmth ratio, fleece or down fill? And which midlayer out of the two should I pick and how should I dress if I to go to the coldest part of the world where it's, let's say -60-degrees Celsius? No Name Given

Is there a proper way to save your tent, short of taking it down, in winds over 50 mph? I had one fail, and I wonder if it was because I kept tightening the guylines, and maybe even over-tightened them. Joe Midland, Texas

I just read Outside's review of the new light technical shells coming out on the market and I realized that none of them are using W.L. Gore's PacLite material. A few years ago this stuff was the rage, but now I don't see any big ne manufacturers using it. Why is PacLite going off of the market? Is it a crummy material? Aaron Provo, Utah

Are their any compressible synthetic sleeping bags that won't leave you shivering and suffering? I mildly allergic to down, and I often carry a ton of work-related gear, so the space I have in my pack for a sleeping bag is limited. What are the best, most-compressible bags in the 15- and 0-degree ranges? Ben Higginboth Fort Leavenworth, Kansas

I'm moving in two weeks' time to a small island in Micronesia to teach for a year, and I've been told we will have no running water or electricity. Could you recommend an air mattress or cot that will last nine months and be pseudo-comfortable? How about reliable solar-rechargeable batteries? Or a sturdy water purifier/filter? Or anything else for that matter, as I'm at my wit's end! I will mail you coconuts and other treats from the Marshall Islands. Jourdan Mii, Florida

As the years go by, my wife and I find ourselves looking for lighter and lighter hiking and camping equipment, especially in terms of our shelter which takes up a significant portion of our pack weight. What's the word on Henry Shires' Tarptents? Their Squall weighs only 24.5 ounces and offers two people a roomy 44 square feet of space. Could this be the lightweight remedy to aching backs and our three-season shelter needs? V. Tran Galveston, Texas

My 2003 hiking season shall henceforth be known as the "Summer of the Bee," for all the stings I got. The long spell of dry weather was suggested to me as a reason, which I liked better than bad karma! Anyway, I quickly used up the three sting wipes in my first-aid kit and now own both REI's Sting Eze and After Bite. To my surprise, these two products use completely different active ingredients. Which one works best on stings? Chris Silverdale, Washington

I've finally decided to buy a GPS unit. My problem? I don't know which one. Your last review that I can find is three years old, but obviously a lot has changed since then. Rick Lebanon, Tennessee

Luckily, my company is relocating to a place where I'll be able to ride to work! What will I need to commute by bike three or four times weekly? I already have road and mountain bikes, plus the gear, but I don't think my racing garb will work for the daily commute. Loehr Athens, Georgia

I'm so confused by the different possibilities and terminology when it comes to rain jackets for biking. I bought a "waterproof" one, but it wasn't and I got soaked. I bought another and sweated so much that I wished I had the previous jacket. What's a good lightweight jacket for cycling that will keep me dry in moderate rainstorms? Mary Itasca, Illinois

What pants would keep me dry, breathe well, and shed plenty wind, all for under $100? I've had my eyes on Marmot's Precip pants, but what do you think about these? Are there other pants I should be looking at instead? On another tack, I assume you're a member of the Doug Club—oh no, have I given the ge away? Doug New York City

As a longtime reader of your column, you have helped me in the past. Now I need your advice again. I'm considering purchasing a canoe for family camping trips, something stable for small lakes and smooth rivers, nothing too extreme. What do you suggest in terms of size, length, and weight? Also, what type of carrying rack will I need for a shell-equipped Toyota pickup? John Springville, Utah

What's the story on titanium cooksets? A friend of mine has one from MSR and while it's super light, it doesn't seem to heat up as rapidly as my stainless steel set. I like the lightness of titanium, but if I have to bring 50 percent more fuel to cook with, I'm not sure it will be worth the price premium. Steve Young Mountain View, California

Is it necessary to waterproof Gore-Tex boots with something like Nikwax's Aqueous Wax Waterproofing? Mike St. Paul, Minnesota

What's going to be the coolest new gear for 2003? The reason I ask is that I want to buy my boyfriend a really unique Christmas gift. He loves the great outdoors, but is still using his ten-year-old boots and ratty old backpack when we go hiking. I know he'd love to be the coolest hiker on the trail! Caroline Santa Fe, New Mexico

This may be a "gear-related question" with a "you don't need gear for that" answer, but I can't find help on this anywhere. I often hear that running on the beach is one of the most effective ways to boost strength and endurance in your legs. I want to start doing this on a daily basis, and I'm wondering what kind of shoe/sneaker I should you wear. Or do I need to wear anything at all? Mark Brick, New Jersey

Do you have any tips, or can you recommend any sources of information, on how to remove tree sap from the outside of a Goretex XCR shell? Thanks!

O Most Knowledgeable One, what wind pants should I get: the L.L. Bean Guide Pants, made of Schoeller Dryskin, or the Marmot DriClime Stretch Pants? Your pearls of wisdom about the differences in performance are sought. Bill Charlottesville, Virginia

I was looking to buy a general, all-purpose, quality, hardwearing watch for travelling, hiking, work etc and was wondering if you could recommend one. I was looking at Suunto watches but unsure of their quality. Can you recommend a watch for me? Brendan Melbourne, Victoria, Australia

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

On a recent spring trip to snowy Mount Whitney, I took a gble and wore my comfy Sundowners along with a pair of Wild Country gaiters, instead of plastic boots. But, the front part of the gaiters kept slipping up and my boots quickly got soaked with all the postholing. Do you think a regular boot and gaiter combo can replace plastics (too heavy and uncomfortable) for snow travel? I'm talking multi-day trips in the California Sierras here. Jake Irvine, California

Gear Guru, what eye gear do you recommend for cross-country skiing when it's windy and snowy? Every pair of goggles I own fog up when I cross-country skiing or snowshoeing. Would glacier glasses solve this problem? Craig Portland, Oregon

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

I'm taking a two-day bike tour with a friend. We are both concerned about the camping stuff we need to be carrying. Can you give some advice on what we should carry on our bikes? And which sleeping bags would you suggest? Ali Serefli Hartford, Connecticut

Can you recommend a lightweight digital camera for backpacking? I was ready to purchase the Yashica T4 that you talk so highly of, but digital cameras are so compact and I don't need to carry all that film. Also do they make water-resistant digital cameras? Dan Hearty, Missouri

This past summer I started running and now have continued into the winter. On the longer runs my privates get awful cold. Is there any underwear out there made of microfleece and/or windproof fabric? I run in tights and wear cotton briefs under them. The cotton is the problem. I don't like wind pants or wearing shorts over my tights, but are they the only answer? Tom Faherty Scituate, Massachusetts

Because of a small fire in our house I need to have three down sleeping bags, a jacket, and a vest cleaned. I need some suggestions of companies that will handle this operation and do it correctly. I may find other equipment and clothes as the clean up process progresses that need cleaning also. The smell smoke and soot of a house fire is not the se as that of a campfire! Gary Johnson Collegeville, Pennsylvania

What is meant by the minimum weight on tent specifications? S Weatherley Birmingh, United Kingdom