99% Cotton, 1% Viscose. Fabric: Pre-Shrunk. Design: Plain. Neckline: Crew Neck, Thin Collar Rib. Sleeve-Type: Short-Sleeved. Back Neck Tape, Tubular. 145gsm. Sustainability: Amfori, Better Cotton Initiative, BSCI, Fair Wear Approved, Oeko-Tex Standard 100 Certified, PETA-Approved Vegan, REACH. 7-8 Years: 28 in. 5-6 Years: 26 in. 9-11 Years: 31 in. 12-13 Years: 34 in. 3-4 Years: 24 in. Ref: UTRW10598