100% Polyester. Fabric: Microfleece, Soft Touch. Design: Plain. Fabric Technology: Abrasion Resistant, Anti-Pilling, Breathable, Lightweight. Sleeve-Type: Sleeveless. Neckline: Standing Collar. Pockets: 2 Side Pockets, Zip. Fastening: Full Zip. 4 UK: 32 in. 6 UK: 33 in. 8 UK: 34 in. 10 UK: 35 in. 12 UK: 37 in. 14 UK: 39 in. 20 UK: 47 in. 22 UK: 50 in. 24 UK: 52 in. 18 UK: 44 in. 16 UK: 41 in. Ref: UTMW590