DRST TM-WT71-BLKZ_Small j-M Tesla Surfista Women's Performance Long Sleeve Athletic UPF 50+ Rashguard WT71 Tesla's original Rashguard lineup designed specifically for Water sports and Surfing 88% Polyester - 12% Polyurethane Durable high-density fabric that protects against rashes, abrasions, and harmful UV Rays (UPF 50+) Twisted 3-D patterns along with pristine detail design and flat-lock stitching Moisture Sensing/Quick time Dry/TWO-WAY Air Circulation.