<b>This LANOVAGEAR bike helmet has a hard ABS shell and an EPS foam liner glued to the inside. The hard-shell is a protective headgear that is both comfortable to wear and effective in reducing the risk of head injury.</b> <p><b>-Material:</b> ABS & EPS<br><b>-Gender:</b> Unisex <br><b>-Helmet Venting:</b> 11 Vents <br><b>-Adjustable Fit:</b> Adjustable Dial System & Adjustable Strap <br><b>-Inner Pads:</b> <b>2 SETS,</b> can be removable and washable <br><b>-Size Chart:</b> <b>Small: 18.9”-21.25” (48-54cm); Medium: 21.5”-22.75” (55-58cm),</b> Choose the helmet size according to the head circumference <p><b>NOTICE</b> <br>This helmet is designed and intended exclusively for skateboarding, roller-skating and cycling. It is not intended for motor vehicle and will not provide adequate safety protection if used during motorsport. It is also not designed for sports other than those for which it is certified. <br>For maximum protection, the helmet must fit well, and all retention straps must be securely fastened. <br>No helmet can prevent against all injuries. Serious injuries or death may occur by any unforeseeable impacts or blows. <br>Every time you use this helmet, check that noting is badly torn, missing or out of adjustment. <p><b>Suitable Sports:</b> <br>Skateboard /Skateboarding <br>Roller/Inline skating <br>Bicycle /Ride /Bike /Cycling <br>BMX bike <br>Scooter <br>Other extreme sports <p><b>Package Included:</b> <br>1 X Helmet <br>1 x Extra Liner Pads