ROCKBROS Cycling Helmet PC+EPS Integrated Anti-fall Comfortable MTB Road Bike Helmet 20 Holes Breathable Adjustable Bicycle Helmet for Men Women

FeatureStandard Version: with ionic +plant-based liner,Upgraded Version:with ionic +plant-based liner,with extra 3D lining at the top of the head;Upgraded Version:3D-GRID elastic matrix system, a direct, multi-angle buffer energy device;One-piece molding technology,PC+EPS safety protection,effectively absorb the impact of vibration to protect the head safety;20 air guide holes,ventilated and breathable;Quick-release magnetic buckle,easier to operate with more than 90° of rotation space, more comfortable to wear;Integrated adjustment system,compatible with more head shapes,fit head 58-62cm;According to tests conducted by a professional organization,all indicators meet the national safety certification standards.