There are an amazing 24 air vents for maximum cooling (including 9 rear). Front mesh is attached to the front vents for prevention of Bee and Wasp stings. All Sport direct inner pads are fully removable and washable including the chin strap, they are made of high wicking material for quick sweat removal. The soft, delicate to the touch lining prevents the growth of bacteria. Its easier to keep the sweat-proof elements totally clean and fresh, as you can wash them quickly ready for their next use. The polycarbonate outer shell with the helmets absorbing EPS foam inner core, giving you an exceptionally lightweight and strong helmet. The Sport Direct visor can be easily removed in seconds, Ideal for sun, mud, dust eye protection and aerodynamics, reducing eye fatigue. The helmet can be used with or without the visor attachment. Sport Direct bike/E-bike helmets have fully adjustable unisize headlock systems and multi adjusting buckles for maximum ergonomic comfort, quick attachment and releasing. You can adjust the side straps and lock them into place with the micro Sport Direct Lock System, this ensures your straps don’t move while riding and the next time you fit your helmet! Chin buckles and pad are also fully adjustable. All Sport Direct helmets are extensively crash and chemical tested ensuring you or your family’s 100% safety, they are also officially CE EN 1078:2012+A1:2012 tested with a full CE Certificate, unlike many other helmets being sold today. NB: Please ensure your helmet meet this standard it could save your life!