Buff&reg; UV Cap USES - The ultimate cap, with two great looks TECHNICAL FEATURES: Made with 100% knitted polyester microfibre Fastwick Fabric which features a special beehive cell construction that offers superb breathability, wicking performance and moisture vapour transpiration. Suitable for high intensity activities yet designed to keep you cool, dry and odour free. Weight 36g/1.3oz. Size 27cm/10.6 inches (front to back), 19cm/7.5 inches wide with a 6cm/2.4 inch peak. It will not lose its elasticity, is colour fast and will not fade. Machine washable and non iron. Treated with Silver Plus  a silver ion treatment designed to inhibit bacterial growth in fabrics so it wont smell after extended wear. Certified to meet Oeko-Tex Standard 100