M Select DRY technology repels water and lets moisture escape. - Mesh and TPU upper - Metal hooks and eyelets for secure lacing - Tongue prevents dust from penetrating - Rubber stone guard for toe protection - M Select FRESH antibacterial solution to limit unpleasant odors - Lightweight (200g), low-volume M-Select WARM insulation for greater comfort. - The Kinetic Fit BASE insole moulds to the shape of your foot, providing intuitive, flexible support. Provides support and protection during movement. - Molded nylon arch support - Exclusive Merrell Vibram Arctic Grip Dura outsole for added strength and grip on ice. - 5mm crampons