Material: 100% Polyester. Fabric: Fluffy. Design: Plain. Fabric Technology: Breathable, Lightweight. Neckline: High-Neck. Sleeve-Type: Long-Sleeved. Fastening: Half Zip, Pull Over. The fleece top is made from 100% Polyester and features a fluffy fabric. It has a plain design and is breathable and lightweight. The neckline is high-neck and the sleeves are long-sleeved. The fastening is a half zip and it is a pull-over style. Specific size dimensions are available for different age groups: 2-3 Years: 21.5 in, 3-4 Years: 22.5 in, 5-6 Years: 24 in, 7-8 Years: 26 in, 9-10 Years: 28 in, 11-12 Years: 30.5 in, 13 Years: 33 in.