Introducing the first helmet on the market that measures your heart rate.

I'm considering buying the Makalu boot from La Sportiva for extended backpacking and mountaineering duties, thinking it would be flexible enough for backpacking yet stiff enough for some crampon work. I understand that for really cold winter climbing I'd want something insulated, but am I wrong in thinking the Makalu will be up to the task? Christopher Mountaintop, Pennsylvania

Please explain the new REI One Jacket! I saw it advertised as a single-layer jacket to replace multiple layers, so I tried one on the last time I was in an REI store. Problem was that it comes with no hood and the pockets are so low in the hip belt area. It doesn't seem comfortable enough to wear without a light layer, or waterproof enough to ditch the rain layer. So, what exactly does it replace? Chris Silverdale, Washington

  Bidder 70 from Gage & Gage Productions on Vimeo. Tim DeChristopher has been in the news since December 2008, when the former University of Utah economics student bid $1.8 million on 13 parcels of BLM land in Utah at a federal oil and gas lease…

Behind the green door: Waimea Canyon on the island of Kauai Q: My husband and I are going to Hawaii for three weeks in October (mostly for hiking, kayaking, and snorkeling). We were thinking of spending some time on Kauai and the Big Island. How many days does it…

ext_script = "//player.ooyala.com/player.js?deepLinkEmbedCode=xuZXYyMzoqJXug2nw7YJ3bWfhe9wrBKp&height=357&video_pcode=1jZG06vQqWlGOe2jr1WK6VaYFHtK&embedCode=xuZXYyMzoqJXug2nw7YJ3bWfhe9wrBKp&width=566" This past weekend we posted Yve Rossy's TED talk online. This morning, his crew sent us video of his latest stunt. The swiss pilot donned his wing, jumped out of a helicopter, and flew above the Swiss Alps with two Breitling jets. Rossy flew…

The following dispatch is from extreme kayaker, Ben Stookesberry, a member of the First Ascent kayak team. They are currently on an expedition in Africa to make a first descent of the Lukuga River, running out of Lake Tanganyika and into the Congo basin. The kayakers began their journey…

Outside magazine, May 1996 Wildlife: Would you stuff this into your suitcase? Renowned bird-lover Tony Silva’s ugly fall from grace By Gretchen Reynolds “Nature has certain rules you don’t violate,” Tony Silva told a reporter in 1985. Dark-haired, dark-eyed, intense, and at 25 already a celebrity…

There's nothing quite like hitting the road with everything you need. Anywhere could be home for the night. It’s a liberating feeling. We asked our Instagram followers to share their favorite towable escapes and best shots from the road. Here's what they shared.

A new device called Halo Sport promises to improve performance by stimulating your mind. We zapped our brains in the name of science to see if it could really make us faster.