Step it up next time you break a sweat with these women's Power Essentials Tights from Nike. Equipped with their Power fabric for optimum stretch and freedom of movement, Dri-FIT tech wicks sweat away from the skin, while the flat seams reduce chafing and irritation. With a zip pocket to the back to hold essentials, finished with reflective Swoosh branding to the left leg.. Material: 92% Polyester/8% Elastane