88% Polyester, 12% Elastane.Design: Heathered, Logo.Neckline: Round Neck.Sleeve-Type: Short-Sleeved.Fabric Technology: Moisture Wicking, Quick Dry, Tearproof.Hardwearing, Stretch.8 UK: 32 in.10 UK: 34 in.12 UK: 36 in.14 UK: 38 in.20 UK: 45 in.18 UK: 43 in.16 UK: 40 in.Colour: Aviator Blue.