To create the completely seamless heel cup in the Under Armour Speedform, designers headed to an unlikely place: a bra factory. Intimate-apparel makers are very aware that a close fit is key to comfort, and it's those manufacturing techniques that allow this running shoe to be stitch free from heel to toe, every section ultrasonically welded together for a snugger fit. [$120; underarmour.com]
Gear of the Year
102 of the Best Tools, Toys & Tech
Plus: The Woman Who Bails Out the NFL's Bad Boys
ON NEWSSTANDS NOW
Joby Ogwyn: The Man Who Fell to Earth
Life Advice from John Cleese
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.