Mounted 4-point chin strap harness|Chin strap ANSI approved for retention on Type II helmet|Provides a secure fit in the most extreme conditions|Meets ANSI/ISEA Z89.1, Type II, Class C requirements|Offers Side (Lateral) Impact Protection which reduces the force of impact resulting from a blow which may be received off center as well as to the top of the head|Also offers Side Penetration Protection in addition to crown penetration|Expanded Polystyrene (EPS) Impact Liner helps absorb the forces of impact|High-Density Polyethylene (HDPE) Shell|Vented to reduce inside helmet temperatures|Deluxe Polyester Textile Strap Suspension with microfiber crown pad webbing|Wheel Ratchet Adjustment allows user to easily adjust fit while wearing|Universal Accessory Slots