85% Cotton, 15% Viscose. Fabric: 4 Way Stretch, Single Jersey, Soft Touch, Tubular. Design: Plain. Neckline: Crew Neck, Thin Collar Rib. Sleeve-Type: Short-Sleeved. Fabric Technology: Durable. Back Neck Tape, No Label, Side Seams. Fit: Comfort. 145gsm. Sustainability: Amfori, Better Cotton Initiative, BSCI, Fair Wear Approved, Oeko-Tex Standard 100 Certified, PETA-Approved Vegan, REACH. 3-4 Years: 24 in. 12-13 Years: 34 in. 5-6 Years: 26 in. 7-8 Years: 28 in. 9-11 Years: 31 in. Ref: UTRW10578