100% Polyester. Fabric: Performance, Yarn. Design: Plain. Neckline: Flat Knit Collar. Sleeve-Type: Short-Sleeved. Fabric Technology: Moisture Wicking. 2 Button Placket, Side Vents. Fit: Contemporary. 180gsm. Colour Retention. S: 37 in. M: 40 in. L: 52 in. XL: 44 in. XXL: 47 in. 4XL: 51 in. 5XL: 53 in. Ref: UTRW10293