CASUAL COMFORT FOR ANY WORKOUT. The Nike Dri-FIT Attack Shorts give you sweat-wicking coverage for lasting comfort. This product is made with at least 75% recycled polyester fibers. Sweat-Wicking Power Soft fabric with Dri-FIT technology moves sweat from your skin for quicker evaporation to help you stay dry and comfortable. Natural Movement Hem vents at the sides let you move naturally through your workout. The adjustable elastic waist keeps the shorts in place during high-paced activity. Comfortable Fit Fold down the waistband to reveal repeat logos.