MOVE FREELY THROUGH EVERY SET. The Nike Dri-FIT Flex Shorts are made to keep you moving during high-intensity training. Nike Flex fabric stretches with every move, while vents at the hems are ideal for deep bends like lunges and squats. Customize the colors for a team-right look. Nike Flex fabric stretches with your body, helping you get the most out of your performance—without getting in your way. Hem vents let you move freely through squats and lunges. Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable. 100% polyester