Material: 90%Polyester and 10% Spandes Lightweight, Silky-Soft, Breathable and 4-Way Stretch. Quick dry: Breathable and lightweight fabric effectively wicks moisture away, keeping you cool and dry. Sun Protection: Guard your skin against the harmful effects of the sun's UV radiation with UPF and SPF-enhanced rash guard fabrics. Features: Stretchable short sleeves, and athletic crew neck design,provide flexibility and comfort. Versatility: Ideal for fishing, swimming, running, cycling, hiking, golf, yoga, camping, and all outdoor activities, as well as sports and training. Comfortable for indoor and outdoor wear in summer, spring, or fall.