Billy Brown is a freelance writer based in Northern California. The former NASM-certified personal trainer covers fitness, outdoor recreation and adventure travel for Outside Magazine, Men’s Health, Men’s Journal, Wired Magazine, Esquire Magazine and the Red Bulletin, along with a host of other publications. He also acts as Backpacker Magazine’s footwear editor and is the founder of TrekTechblog.com, a site devoted to outdoor gear, beer and general mischief.