The soft fabric with anti-pilling treatment is extremely breathable and lightweight. Quick-drying for all-day comfort. 4-Way Stretch technology allows for better movement in every direction. The material wicks away sweat and dries very quickly. UPF 30 protects the skin from the sun's harmful rays. Ribbed bomber sport collar and minimalist closure for a better look and feel. Odor control technology minimizes odor. Material: 82% Polyester Cationic, 10% Polyester, 8% Elastane