●This helmet is designed to protect cyclists, skateboarders and inline skaters. According to DIN Form EN-1078, it is made from lightweight foamed polystyrene (EPS). NTNK N11 BMX helmets are equipped with magnetic buckles, chin strap pads and chin sliders to support your chin. ●This helmet has been designed by Nuri Edwardo with great attention and attention to detail so that it will last you for a long time. You can use it for your bike, skate or scooter. It protects your head from bumps and drops while making you look stylish. ●The adequate ventilation of this helmet ensures a comfortable fit. Thanks to the 11 perfectly placed holes in this helmet, you can now ride a bike without sweating and getting exhausted. ●The integrated sizing system of this helmet ensures a secure and comfortable fit regardless of your head shape. Between chin strap and padding there is a comfortable fit. Adjust the scooter helmet perfectly to your head size with the dial fit adjustment system via the non-slip adjustment wheel. ●When you buy this helmet, you can access the NTNK Life Building program. In addition, you can ask your questions in the Q&A area and we will answer them as soon as possible. Never try, never know.