Size, Mens 11. Bontrager's RXL MTB is the ultimate XC race shoe, featuring a lightweight, ergonomically optimized design, customizable fit, and ultra-efficient Silver Series Carbon sole. Packed with fit-tune details like a heat-moldable inForm custom footbed, a multi-position medial adjuster to dial-in top pad placement, a Micro-Fit buckle for quick and precise tension adjustment on the fly, and a rider-adjustable Heel Trap to lock and stabilize the heel, the RXL MTB shoe makes it easy to achieve a personalized, custom fit that will keep you comfortably ahead of the competition.