Full grain, PU Coated, and Suede leather upper. Inside zipper for easy on and off. M-Select DRY seals out water and lets moisture escape keeping your feet cool and dry. 300g M-Select WARM lightweight, low bulk insulation keeps you warm. M-Select FRESH for odor control. M-Select MOVE foot frame gives you an ideal combination of natural flex, contoured support and performance cushioning for all-day comfort. Molded nylon arch shank for improved stability. M-Select GRIP tunes each outsole with durable traction that grips when and where you need it.