You've taken on the worst to earn your place among the best. Let the breathability of the Nike Dri-FIT ADV AeroSwift top carry you to the finish line. Lightweight and soft, this top incorporates our most innovative technologies to help you beat your record. This product is made with at least 75% recycled polyester fiber. The AeroSwift collection represents the nec plus ultra in racing gear. Our innovative garments are all about speed, giving you the protection you need to stay focused and perform at your best. Streamlined, lightweight and fashionable, they give you total freedom of movement to beat all your personal bests. The Nike Dri-FIT ADV technology combines anti-perspiration fabric with advanced innovations to keep you dry and comfortable. The mesh fabric feels soft and lightweight. Data collected from runners was used to place vents in the fabric for optimal breathability and coolness. Side seams running from back to front to reduce chafing. Armhole shape allows for natural movement.