Construction: Seamless injection-molded ABS outer shell, shock-absorbing EPS inner foam shell with additional protective lining, removable comfort liner with open-cell foam. The chinstrap is equipped with quick release clasp for easy secure, yet reliable.

• Injection-molded ABS outer shell 
• Expanded EPS foam shell
• Thicken protective lining
• Meets DOT safety standards
• 3D cut elastic foam comfortably wrap the head
• Excellent sealing performance for effectively reducing noise