100% Polyester. Fabric: Performance. Design: Plain. Neckline: Crew Neck. Sleeve-Type: Short-Sleeved. Cuff: Twin Needle Stitch. Hem: Twin Needle Stitch. Fabric Technology: Colour Lock, Lightweight, Moisture Wicking, Soft, Stretch. Tag Free. 135gsm. Conforms to Safety Standard: Amfori, BSCI, OEKOTEX, REACH Compliant. Sun Rating: UPF 40+. XS: 32 in. S: 34 in. M: 38 in. L: 42 in. XL: 46 in. XXL: 49 in. 3XL: 52 in. 4XL: 55 in. 5XL: 58 in. 6XL: 61 in. Ref: UTRW8207