100% Cotton. Design: Plain. Neckline: Crew Neck, Narrow, Ribbed. Sleeve-Type: Short-Sleeved. Fabric Technology: Lightweight. High Stitch Density, Seamless, Taped Neck, Taped Shoulders, Tearaway Label, Tubular, Twin Needle Stitch. Fit: Classic. 150gsm. Sustainability: Better Cotton Initiative, Fair Labor Association, Oeko-Tex Standard 100 Certified, REACH, Sedex, Sustainable Apparel Coalition, WRAP Certified. 12-13 Years: 36 in. Ref: UTPC7490