ENGINEERED SUPPORT The Nike Power Speed Men’s Running Tights are designed to encourage every move with a compressive feel throughout and a screen-printed pattern that provides support to key muscles. So you can focus on how far and how fast you’re going-not how long until you stop. SUPPORT IN MOTION Compression fit provides a high level of support across key muscles, for exceptional mobility. CLOSE-FITTING COMFORT High-stretch Dri-FIT fabric helps you stay dry, comfortable and on the move. SECURE STORAGE The zip pocket on the center-back has a vapor barrier to help protect stored items. MORE DETAILS Low-profile waistband and drawcord for a secure, comfortable fit Reflective details enhance visibility in low light Fabric: Body: Dri-FIT 74% polyester/26% spandex. Pocket: 100% polyester. Gusset lining: Dri-FIT 100% recycled polyester. Machine wash ImportedCompression fit provides a high level of support across key muscles, for exceptional mobility.