Type I Class C. ANSI Z89.1 Standard. With Visor Kit Installed. OSHA Approved for your JobSite. Features: ANSI Z89.1. Sliding breathable vent system on top of the helmet provides ultimate adaptability. Headlamp, Visor & Earmuff Attachment Points. Chinstrap with chin-cup for extra security. Suspension System for extra top impact protection, Hi-Viz Design with front & back visibility, Comfort + Sweatband developed specifically for construction applications, Lateral chin strap adjustment, Universal size, Anti-Scratch Visor Kit included and Installed with mounts.