Skins Women's A400Compression Shorts 76% Nylon/24% Spandex Imported World's first Dynamic Gradient Compression delivers more oxygen-filled blood to active muscles, increasing endurance, power, and efficiency Adaptive HEIQ technology for state-of-the-art temperature and moisture management Flat Bonded/Taped Hems and flat sitting, flexible, chafe resistant A-Seam SKINS Performance Compression: It's equipment, not clothing