Amp up your routines in these women's Pro Hypercool Tights from Nike. Built to keep you cool and comfortable, Hypercool technology ventilates areas of high heat, while Dri-FIT material wicks sweat from the skin. Flat seams reduce chafing and irritation, while the elastic waistband keeps you snug and comfortable through every stretch, bend and movement.. Material: 80% Cotton/20% Polyester