Features:
                     - Crashworthiness, not brittle to withstand the high intensity, strong foam density.
 - Use ONE STEP technical material, EPS increases impact resistance of composite materials.
 - Ultra-light, wind tunnel, duct design, effectively reduces wind resistance.
 - High-quality foam layer, the adjustment within the twist, you can adjust the size of head circumference.
 - Suitable for people with head circumference 54-65cm and the head-width below 16cm.
 



         
