Size:S:52-54cm,M54-58cm,L58-61cm
Material:PC+ grey American EPS / Tough and durable material is safe and helpful to decrease the impact forces of the collision
The special aerodynamic design that makes air ventilated can keep cool during riding a bike
Lightweight: 250g super lightweight helmet will not cause any burden to the rider's head during cycling.
Equipment:hot pressed lining,3D fit system(Adjuster),nylon straps