91% Polyester, 9% Elastane. Fabric: Soft Touch. Design: Plain. Neckline: Crew Neck. Sleeve-Type: Long-Sleeved. Fabric Technology: Moisture Wicking, Quick Dry, UV Protection. Reflective Detail, Thumb Holes. Fit: Loose. Suitable for: Gym, Running. Sun Rating: UPF 50+. 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: UTMW3566