Material and structure:All our expandable polystyrene (EPS) linings are imported from the United States and constructed at high densities for greater impact resistance. The thicker polycarbonate (PC) case is injection molded with EPS lining to provide ad
Suitable for system:The back of the mini dial can be adjusted for smooth size adjustment. It can be easily rotated with one hand and is designed with vertical adjustment to provide perfect head fit.
Ventilation:The 21 vents provide excellent aerodynamics and the coolest and happiest cycling experience
Gasket and strap and buckle:internal gaskets are used on larger surfaces in contact with the head to improve comfort. Removable hand wash and allergy resistant.
The nylon strap is breathable and sturdy, buckle for your safety.