Design: Waterproof DriDefense membrane Nylon and synthetic leather upper Lace up style for a secure fit Padded collar adds comfort Odor-eliminating, natural and non-toxic Cleansport NXT(TM) treatment In-Shoe Comfort: Lightweight, comfortable EVA foam midsole provides support and shock absorption Moisture wicking fleece linings keeps the feet comfortable Fixed foam insulation for added warmth Durability & Traction: BOREAL synthetic rubber outsole uses deep treads with GripXT for stability in snowy conditions Additional Details: Comfortable down to -22deg Comes with an additional pair of laces Height: 6.69 in Weight: 1.69 lbs per pair Circumference: 10.03 in (size 7)