Features:<br> 1.Made of high-quality polyester material, which is breathable, quick-drying, antibacterial.<br> 2.The helmet liner is made possible by advanced moisture wicking technology that absorbs and rapidly evaporates sweat tested under extreme sports.<br> 3.It can be as a liner under athlete helmets and hard construction hats providing both comfortable cushions while preventing sweat from stinging the eyes.<br> 4.Infused with instant cooling properties, the cap helps relieve stress from heat.<br> 5.It is lightweight, durable and has added ventilation for maximum comfort. Great to use for any helmet sport or even as everyday wear.<br> Specifications:<br> Material:Polyester<br> Size:25x16.5cm<br> Theme:Sports<br> Sport Type: Cycling, Riding, Skiing, Hiking, Fishing, Skating<br> Item Type:Cap<br> Features:Breathable,UV protective,elastic,quick-dry<br> Cap circumference:55-61cm/21.65"-24.01"<br> Package List:<br> 1 x Helmet liner cap