90% Cotton, 10% Polyester. Fabric: Jersey. Design: Plain. Neckline: Crew Neck, Ribbed, Seamless. Sleeve-Type: Short-Sleeved. Hem: Twin Needle Stitch. Quarter Turned, Taped Neck, Taped Shoulders, Tearaway Label, Tubular, Twin Needle Collar, Twin Needle Sleeves. Fit: Regular. Please Note: Side Seams On Sizes 3-4 & 5-6, Tubular Body 7-13 Years. 153gsm. Sustainability: Better Cotton Initiative, Fair Labor Association, Oeko-Tex Standard 100 Certified, REACH, SAC Approved, Sedex, US Cotton Trust Protocol, WRAP Certified. 12-13 Years: 36 in. 3-4 Years: 26 in. 5-6 Years: 30 in. 7-8 Years: 32 in. 9-11 Years: 34 in. Ref: UTPC6763