CLSL TM-T71-WHTZ_X-Large Tesla Surfista Men's UPF 50+ Long Sleeve Crew Athletic Fit Rashguard T71 Atheletic Fit, we strongly recommend choosing ONE size up. Tesla's original Rashguard lineup designed specifically for water sports and Surfing UV Protection Factor 50+ Durable high-density fabric that protects against rashes, abrasions, and harmful UV Rays. Twisted 3-D patterns along with pristine detail design and flat-lock stitching Moisture Sensing/Quick time Dry/TWO-WAY Air Circulation. 4-Way stretch with water shedding capabilities 88% Polyester - 12% Polyurethane