100% Ringspun Cotton. Design: Plain. Neckline: Crew Neck, Ribbed, Taped. Sleeve-Type: Short-Sleeved. Hem: Twin Needle Stitch. Quarter Turned, Seamless, Taped Shoulders, Tearaway Label, Tubular, Twin Needle Sleeves. Fit: Modern. 153gsm. Sustainability: Better Cotton Initiative, Fair Labor Association, Oeko-Tex Standard 100 Certified, REACH, Sedex, Sustainable Materials, US Cotton Trust Protocol, WRAP Certified. 3-4 Years: 26 in. 12-13 Years: 36 in.