Hard Hat, ANSI Classification Type 1, Class C, Head Protection Style Full Brim, Head Protection Suspension Type Ratchet (4-Point), Head Protection Color Yellow, Fits Hat Size 6 1/2 to 8 1/2 in, Head Protection Material HDPE, Accessory Mounting Options Side-Slots, Head Protection Venting Yes, Weight 0.101 lb, Standards ANSI/ISEA Z89.1