Chamlang series products are named after a mountain top in Nepal. The North Face has chosen a highly durable surface fabric and three-layer structure for these products, making it easy to predict they'll have a long service life. In addition this product belongs to the Summit Series, which as proven its toughness over the years. Summit Series products will serve you in some of the most demanding mountain conditions. Combine with weather-specific mid and base layers and go for it! - Waterproof, windproof, breathable Futurelight three layer material, with durable surface fabric - Reinforcements made of 420 x 500 denier 235g/m² Nylon - The cuffs are designed to work well with a variety of footwear and skiing boots, complete with a stretchy snow gaiter system - Integrated flat belt for comfort even when wearing a backpack hip belt, a pulk pulling harness or climbing harness - Sprayproof ventilation zippers - the right side on reaches all the way to the waist, making for easy on and off