• Adjustable Fit Ring provides a dial size
• Adjustable Chin Straps
• Front Intake Vents, Race-Style Exhaust Diffusers, and Rear Exhaust Vents
• Complies with CPSC Safety Standards

It comes with adjustable chin straps which complies with CPSC safety standards. Also adjustable fit ring provides a dial size. It also complies with features like front intake vents, race-style exhaust diffusers, and rear exhaust vents...Read More