CW-X Men's Insulator Pro Tights 80% Polyester/20% Polyurethane Imported The support web provides knee and hip joint support Warm stretch" temperature Regulation fabric provides comfortable running for fall/winter conditions Wind-proof, water-repellent front panel adds comfort in wind and rain YKK flip lock zippers and reflective front logo Support Web mimics kinesiology-taping techniques to support ligaments and joints; The Support Web reduces muscle vibration reducing fatigue Warm Stretch temperature-regulating fabric helps you to maintain a constant comfortable temperature Wind-Proof, water repellent front panel Increases the bodies efficiency so you can be active longer and recover faster