Designed to reduce UV exposure. 8 oz. 4-Way flex nylon / Spandex composite Breathable, flatlock - stitched seams 50 U.V. Protection blocks 97.5% of harmful rays. Designed to reduce UV exposure. 8 oz. 4-Way flex nylon / Spandex composite Breathable, flatlock - stitched seams 50 U.V. Protection blocks 97.5% of harmful rays. Fast drying and odor resistantAvailable in blue or red with black accents & pink with white accents.SIZES XS through 2XL