82% Nylon, 18% Spandex Suitable for outdoor and indoor activities, best for water sports, you can wearing it for surfing, BJJ,MMA, paddle sports, running and a huge variety of sports. The rash guard is made with stretchy, moisture wicking fabric for maximum comfort and range of motion in the water. UV fabric blocks out the sun's rays for added protection. 4 way stretch fabric stabilizes muscle with compression to prevent fatigue and energy loss. Breathable fabric balances temperature while eliminating excessive moisture and heat. Asymmetric design creates uniqueness and make you different from the rest.