Fast-drying, stretch fabric Sweat-wicking climalite technology Curved hem with wider centre Racerback design Relaxed fit UPF 50+ UV sun protection Head for the court in the Adidas Tennis Club Tank Top. Made with fast-drying, stretch fabric, this top comes in a relaxed fit with the racerback design allowing freer movement and a curved hem adding a feminine look. climalite technology deals with moisture and UPF 50+ UV sun protection shields you from harmful rays when out on the court.