6-Point Suspension System, Unique 3D Adjustment provides a precise helmet fit using harness depth settings. Packed ready-to-wear with no assembly required. Meets ANSI/ISEA Z89.1-2009, Type 1, Class E requirements. High-density polyethylene (HDPE) shell with full brim to protect against sun exposure, rain, snow and dust. Universal slots to fit various accessories, OneTouch Slip Ratchet adjustment.