100% Cotton. Fabric: Fine Knit Gauge. Design: Plain. Neckline: Crew Neck, Ribbed Collar. Sleeve-Type: Long-Sleeved, Set-in. Cuff: Lycra Ribbed. Hem: Twin Needle Stitch. Cut Out Label, Taped Neck, Tubular. 165gsm. Sustainability: Amfori, Better Cotton Initiative, BSCI, No Child Or Forced Labour Used, Oeko-Tex Standard 100 Certified, WRAP Certified. 3-4 Years: 26 in. 12-13 Years: 34 in. 5-6 Years: 28 in. 9-11 Years: 32 in. 14-15 Years: 36 in. 7-8 Years: 30 in. Ref: UTRW9899