The Spyder Cheer Long Underwear Bottoms are a great investment to help your little skier stay warm on the slopes. They're made with synthetic materials and have moisture wicking capabilities to help pull the sweat away from the skin - this will keep her feeling dry and comfortable throughout the day. There's also an anti-microbial which helps the fabrics smell good even after a full day of skiing. Whether the family's heading out for a day on the mountain or you want her to stay warm on those super cold winter days, the Spyder Cheer Long Underwear Bottoms are a comfortable option. Moisture Wicking and Antimicrobial, Seamless Design with Soft Compression on core muscle groups, 69% Nylon, 31% Polyester, Fit: Tight, Warranty: Lifetime, Wind Protection: No, Material: Synthetic, Weight: Mid, Type: Bottom, Wicking Properties: Yes, Water Resistant: No, Recommended Use: Snow, Antimicrobial: Yes, Anti Odor: Yes, Quick Drying: Yes, Moisture Wicking: Yes, Model Year: 2016, Product ID: 394020, Model Number: 156569001101P, GTIN: 0889212098391