100% Polyester. Fabric: 2 Way Stretch, Neoteric, Soft Touch. Design: Plain. Neckline: Crew Neck, Self Fabric, Taped. Sleeve-Type: Set-in, Short-Sleeved. Fabric Technology: Lightweight, Moisture Wicking, Quick Dry. Tearaway Label, Twin Needle Stitching. Fit: Standard. 135gsm. Sustainability: Amfori, BSCI, Oeko-Tex Standard 100 Certified, PETA-Approved Vegan, Sedex, WRAP Certified. Sun Rating: UPF 30+. XS: 31.5 in. S: 34.5 in. M: 37.5 in. XL: 44 in. Ref: UTLT3782