LIGHTWEIGHT COMFORT AND FLEXIBILITY. The Nike Superset Top combines sweat-wicking power with a non-restrictive fit that helps keep you moving comfortably from warmups through cool downs. Breathable fabric is made with at least 50% recycled polyester and lets the air flow to keep you cool when your workout heats up. Sweat-Wicking Breathability Lightweight, breathable fabric with Dri-FIT technology moves sweat from your skin to help keep you cool, dry and comfortable. Natural Movement Curved seams at the sleeves let you move your arms freely as you stretch, lift and sprint.