89% Polyester, 11% Elastane. Design: Plain, Swoosh. Neckline: Collared. Sleeve-Type: Short-Sleeved. Hem: Straight. Fabric Technology: Dri-FIT, Moisture Wicking. Button Placket, Unrestricted Movement. Fit: Athletic. S: 37.5 in. M: 41 in. L: 44 in. XL: 48.5 in.