Div iddetail info data mce fragment1 span data mce fragment1 available sizes span span data mce fragment1 br data mce fragment1 span span data mce fragment1 for a perfect fit, measure the circumference of the head starting in the middle of your forehead to ensure you choose the correct size'. '.strtoupper('s') fits 50 54cm, span div div data mce fragment1 span data mce fragment1 br data mce fragment1 impact resistant span br data mce fragment1 this kids skate helmet features shock absorbing and impact resistant'. '.strtoupper('m')aterial use tough and durable abs and eps foam which help absorb the impact and protect the head during impact'. '.strtoupper('h')elmet got ce certification, it's a great safety guards for outdoor sports like skating and cycling'. '.strtoupper('d')iv div data mce fragment1 br data mce fragment1 span data mce fragment1 span span data mce fragment1 awesome ventilation system span br data mce fragment1 as designed with 11 multiple air vents, special aerodynamic design and breathable foam, the skate helmets help reduce sweating and keep cool even during intense body movement, which is considered as cool helmets for skateboarding or roller skate'. '.strtoupper('d')iv div data mce fragment1 br data mce fragment1 span data mce fragment1 span span data mce fragment1 for multi sports span br data mce fragment1 as an ideal skateboard accessory, this skate helmet can also be used in many outdoor activities, such as roller skating, inline skate, scooter, cycling, rollerblading, long board and two wheel electronic board'. '.strtoupper('d')iv