100% Polyester. Design: Cycling, Graphic Print, Logo, Scenery. Neckline: Crew Neck. Sleeve-Type: Short-Sleeved. Fabric Technology: Durable, Moisture Wicking, Quick Dry. Sustainability: Made from Recycled Materials. Sun Rating: UPF 40+. 14 Years: 33 in. 3-4 Years: 22.5 in. 11-12 Years: 31 in. 15-16 Years: 36 in. 13 Years: 32 in. 5-6 Years: 24 in. 7-8 Years: 26 in. 9-10 Years: 28.5 in. Ref: UTRG10600