Brainy and brawny. High-tech features are wrapped in a strapping leather-and-rubber body: The waterproof, breathable membrane lets your sweat vapor out but won't let water in; insulation made with bamboo charcoal is antimicrobial; and a thermal foil barrier keeps in heat. [$140; keenfootwear.com]
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The Adventure Issue
Eight Trips That Take Your Further
Plus: The Toughest Agent in the NFL
ON NEWSSTANDS NOW
The Devil's Obstacle Course
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