Features 1、Made of high-strength, high-density PC + EPS housing, lightweight and impact-resistant. 2、 The lightweight design reduces wind noise, fully considering the pressure of the rider's head for a long time, especially the use of high-density EPS material, lightweight design, ensuring safety and comfort. 3、 Diversion and drag reduction design, with ventilation holes, intake and exhaust ports are designed to ensure sufficient ventilation to keep cool. Passed CE safety certification, better head protection, insect net design, safe shock absorption. 4、 Head circumference adjustment system. The shrinkage of the rotating buckle can adjust the buckle in the helmet to meet the riders with different head circumferences and achieve a comfortable and fixed effect. 5、 Multipurpose. It can be used as a mountain bike bicycle helmet by putting on the brim. It can be used as a road bike helmet after removing the brim. It is convenient and fast. Applicable gender: for men and women Applicable age: adult Size: one size Weight: 248g Material: PC + EPS Size: about 330mm * 160mm * 22mm Process: one-piece molding Package List 1 pcs Cycling Helmet