90% Polyester, 10% Elastane. Fabric: 4 Way Stretch. Design: Logo. Neckline: Round Neck. Sleeve-Type: Short-Sleeved. Hem: Side Vents. Fabric Technology: Lightweight, Moisture Wicking, Odour Control, Quick Dry, Soft. 8 UK: 33.5 in. 10 UK: 36 in. 12 UK: 38 in. 14 UK: 41 in. 16 UK: 42 in.