82% Polyester, 18% SpandexUPF 50+ rash guard shirt protects sensitive skin from sun burn and UV raysColor block rashguard swimsuit top features short-sleeve and crew neckSwim shirt with stretchy and quick dry fabric is comfortable when out of water and inModest swimwear top can be used as a bikini cover up or regular athletic topAthletic rashguard top. Perfect for swimming, surfing, riding or running under the sun