Outer Materials: 100% Nylon. Lining Material: 100% Polyester. Fabric: Coolmax, Ripstop. 5 Panel Design, Eyelets, Low Profile, Sweatband, Tearaway Label. Fabric Technology: Breathable, Waterproof. Fastening: Adjustable Strap, Snapback. Sustainability: Amfori, BSCI, REACH. Ref: UTBC5100