90% Nylon, 10% Elastane. Fabric: 4 Way Stretch. Design: Logo, Plain. Neckline: Crew Neck. Sleeve-Type: Short-Sleeved. Hem: Side Vents. Fabric Technology: Iso-Chill, Moisture Wicking, Quick Dry, Ventilated. Fit: Regular. XS: 32 in. S: 33 in. M: 35 in. L: 37 in. XL: 39 in.