The Nike Pro Warm Tights are made from sweat-wicking fabric with ribbed panels to keep you comfortable.Wear them for warmth during your toughest workouts or under your game-day kit.This product is made from at least 75% recycled polyester fibres. Nike Pro Warm Men's Tights Lightweight fabric with Dri-FIT Technology moves sweat from your skin for quicker evaporation to help you stay warm, dry and comfortable. Stretchy fabric creates a compressive feel.Ribbed panels at the lower back, inseam and inner ankle add flexibility to keep you moving freely. Tight fit for a body-hugging feel Full length Body: 88% polyester/12% elastane.Rib: 92% polyester, 8% elastane. Machine wash