100% Polyester. Fabric: Knit Effect, Soft Touch. Design: Plain. 250gsm. Fabric Technology: Durable. Sleeve-Type: Long-Sleeved. Reflective Trim. Neckline: Standing Collar. Cuff: Stretch Binding. Pockets: 2 Side Pockets, Zip, 1 Sleeve Pocket. Fastening: Full Zip. Hem: Stretch Binding. Sustainability: Made from Recycled Materials. 3-4 Years: 22.5 in. 11-12 Years: 31 in. 14 Years: 33 in. 15-16 Years: 36 in. 7-8 Years: 26 in. 9-10 Years: 28.5 in. Ref: UTRG12148