ICEBREAKER is rated for adventurous pursuits in extreme cold temperatures. Polar ProvenA(R) in some of the world&';s harshest climates, ICEBREAKER is not only technically superior, but also lightweight and flexible. Recommended during moderate levels activity, ICEBREAKER offers everything you need in a performance winter footwear companion. Insulation Rating: Fixed-Fit multi-layer inner boot system Waterproof Class: B-Tek(TM) Dry Waterproof Base Snowshoe Compatible Slip Resistant Snowshoeing: Lightweight, warm footwear for snowshoeing Ice Fishing: Extreme-weather boots with trusted insulation Specs: Based on Men&';s Size: 9 Height: 13" External Forefoot Width: 5" External Length: 12.5" Weight of Pair: 6.78 lbs Care: Leather: Apply non-coloured shoe oil or wax to the surface Nylon: Start by hand washing with warm water. If dirt persists, use mild detergent. Natural air dry and avoid sun exposure Rubber Base: Wipe with a damp cloth to remove excess dirt