There are an amazing 15 air vents for maximum cooling (including 4 rear). All Sport direct inner pads are fully removable and washable including the chin strap, they are made from high wicking material for quick sweat removal. The soft, delicate to the touch lining prevents the growth of bacteria. Thanks to the removable padding, it’s 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. Sport Direct BMX/Skate/Bike/Scooter 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! SPORT DIRECT 3 YEAR CRASH POLICY: All our helmets come with a 3-year crash helmet replacement policy. The scheme offers the chance to replace your helmet at a discount, proof of purchase is required following a genuine accident resulting in damage to the helmet. Conditions apply.