Super comfortable snow boot. Leather and mesh uppers. Lace up closure for an adjustable and secure fit. 200 grams Merrell Opti-Warm™ with synthetic insulation will keep your feet warm. Strobel construction offers flexibility and comfort. TPU Waterproof shell. Removable EVA footbed will provide cushioning and supprt. Sticky rubber sole is slip resistant and provides great traction. Comfort range to -40F/-40C.