100
The Aircraft is precision engineered with a fiberglass composite shell providing an ultra-lightweight design. Enhance venting channels manage airflow to create one of the most ventilated DH helmets on the market. Lightweight Design: Featuring a fiberglass composite shell Active Cooling System: Maximizes airflow more than any other helmet with a staggering 25 ventilation ports Comfort Liner: Washable, antibacterial liner, cheek pads and chin strap covers Integrated Compartment: Accepts inflatable emergency release systems Compatible with most popular neck brace systems Steel D-ring buckle provides a secure fit while limiting weight Adjustable visor with machined lightweight aluminum screws 100% Aircraft Composite Full Face Helmet - Silo, Small Gender/Age: Adult Maximum Head Circumference: 56 Color: Silo Multi Impact: No Size: Small Rotational Protection: No Helmet Style: Full Face , BMX , Mountain Helmet Certifications: Complies with the U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older Visor Included: Yes Minimum Head Circumference: 55 Defined Color: Black 100% Aircraft Composite Full Face Helmet - Silo, X-Small Gender/Age: Adult Maximum Head Circumference: 54 Color: Silo Multi Impact: No Size: X-Small Rotational Protection: No Helmet Style: Full Face , BMX , Mountain Helmet Certifications: Complies with the U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older Visor Included: Yes Minimum Head Circumference: 53 Defined Color: Black