100% Cotton. Fabric: Coolweave, Jersey, Soft Touch. Design: Back Print, Graphic Print, Logo, Sunrise, Text. Neckline: Crew Neck. Sleeve-Type: Short-Sleeved. Fabric Technology: Breathable, Ventilated. 160gsm. Sustainability: Sustainable Materials. 15-16 Years: 36 in. 3-4 Years: 22.5 in. 5-6 Years: 24 in. 7-8 Years: 26 in. 9-10 Years: 28.5 in. 11-12 Years: 31 in. 13 Years: 32 in. 14 Years: 33 in. Ref: UTRG10603