TSLA Men's UPF 50+ Long Sleeve Rashguard MSR Series Tesla's original Rashguard lineup designed specifically for water sports and Surfing 50+SPF/UPF sun protection Durable high-density fabric that protects against rashes and abrasions Moisture Sensing/Quick time Dry/TWO-WAY Air Circulation. 4-Way stretch with water shedding capabilities Material: Polyester 100%