100% Polyester. Fabric: Ribbed. Design: Painted Effect. Neckline: Crew Neck. Sleeve-Type: Long-Sleeved. Fabric Technology: Lightweight, Moisture Wicking, Quick Dry, Soft. Contents: 1 Bottoms, 1 Top. Waistline: Elasticated. 2-3 Years: 22 in. 3-4 Years: 22.5 in. 5-6 Years: 24 in. 7-8 Years: 26 in. 9-10 Years: 28.5 in. 11-12 Years: 31 in. 13 Years: 33 in. Ref: UTMW3786