A growing body of research suggests the wildly unpopular beet is the endurance-athlete's new best friend.

To break the record, Hamilton relied on friends, family, a 4WD truck, high-calorie powder mix—and all-around breathable, waterproof shoes with GORE-TEX® SURROUND® Footwear technology

Five great exercises you can do in just 20 minutes

Triathlon is booming, with hundreds of events being added to the calendar each year and thousands of goggle-eyed newbies lining up to swim, bike, and run for the first time. But only one race still really matters. Greetings from the Ironman World Championship in Kona, Hawaii, ground zero of America's multisport madness

From cycling apparel brand Albion, Heading North features a 25 years old cyclist, Damien Clayton as he attempts to ride 650 km from London to Edinburgh in one day. 

Dear Gear Guru, Here is a question that no one ever talks about: the dreaded first aid kit. Of course, you'd never get injured, but in case you did, what do you recommend packing in the way of first aid for weeklong wilderness trips? I have looked around and can't find a pre-packed kit that seems very comprehensive. Andrew L. Salt Lake City, Utah

YVON CHOUINARD, owner and founder of Patagonia, one of Outside's 50 best places to work, knows a thing or two about doing good business. Here, he shares some of what he's learned.

Andean Adventure First-aid kit essentials Every traveler should carry a basic first-aid kit. Outdoor Research and others have ready-made kits. Consult the Pocket Doctor by Steven Bezrushka. Medicine for Mountaineering by James Wilkerson, M.D., has more detailed info. Besides items basic to all first-aid kits ours includes:…

For American Olympic fans, biathlon is overshadowed by blockbuster sports, such as alpine skiing and snowboarding. But biathletes are just as badass as the downhillers—these cross-country skiers race to average heart rates of 175 bpm, then fire five precision shots in as few as seven seconds, nearly miraculously hitting a…

One year after the spill, two books examine the causes and effects of BP's Deepwater Horizon disaster.