This adult ski pants are made of high-performance insulated polyester material, designed to be water and wind resistant. The knee part adopts 3D cutting, which fits the human curve more and provides a comfortable wearing experience. Suitable for all winter outdoor activities. Features: High-performance insulated polyester material, good warmth retention. Water and wind resistant design, adaptable to various harsh weather conditions. Inner thigh zipper design, breathable and keeps dry. The straps can be removed, and the knee is 3D cut to fit the human curve. Side elastic waist comes with belt loops to make you find a custom fit Perfect For Outdoor Activities, Like Hiking, Climbing, Skiing, Snowboarding, Winter Sports, Fishing, Working in Winter Specifications: Material: Polyester Fibre Size: XS,S,M,L,XL,XXL (Optional) Package size: 30*20*10cm / 11.8*7.9*3.9in Package weight: 700g / 24.7oz Package List: 1* Ski pants