100% Polyester. Fabric: 4 Way Stretch, Woven. Design: Contrast Detail, Logo. Pockets: 1 Security Pocket, Zip, Back, 1 Mobile Phone Pocket. Fabric Technology: Anti-Bacterial, Chemical Free, Lightweight, Odour Control. 2 in 1, Inner Brief, Reflective Detail. Waistline: Elasticated, Wide Waistband.