ROCKBROS HC-52 Men Women Cycling Helmet Shockproof Adjustable Bicycle Helmet - Black/White//Size: M

Magnetic snap buckle, easy to wear and take off by one hand

Adjustable head circumference, fits for most people

Shockproof design to protect you head from any angle of impact

Ventilation hole design. No matter on a cycling race or a hot day, this road bike helmet can aspirate more cool air to keeping the comfortable

Head circumference: 55-58cm