NIKE Men's Tech Half Running Tights 85% Polyester/15% Spandex Machine Washable The Nike Tech Half Tights have flat, ergonomic seams that hug the body's natural contours so you stay comfortable during a workout. Stretchy, sweat-wicking fabric enhances range of motion and helps keep you dry. Can be worn alone or as a base layer as shown in pictures. Dri-FIT fabric to wick sweat away and help keep you dry and comfortable. Stretch waist with interior drawcord for a snug fit that stays put. 85% Polyester/15% Spandex Ergonomic, flat-seam construction for comfort. Zip pocket at back hip for secure, small-item storage. Additional drop in pocket on other hip for ipod, key fob, etc. American Size: Large