100% Ringspun Cotton. Fabric: Soft Touch. Design: Plain. Neckline: Crew Neck. Sleeve-Type: Short-Sleeved. Cuff: Twin Needle Stitch. Hem: Twin Needle Stitch. Back Neck Tape, Quarter Turned, Seamless, Taped Shoulders, Tearaway Label, Tubular, Twin Needle Collar. Fit: Classic. Please Note: Side Seams On Sizes 3-4 & 5-6. 153gsm. Sustainability: Better Cotton Initiative, Fair Labor Association, Oeko-Tex Standard 100 Certified, REACH, SAC Approved, Sedex, US Cotton Trust Protocol, WRAP Certified. 9-10 Years: 30 in. 12-13 Years: 32 in. Ref: UTPC3387