WHISTLER Hard hat with sleek modern style lightweight high density polyethylene to give you and your company the ideal choice in CSA Type 1 head protection. Rain trough slotted design shell to accommodate all the latest accessories such as hearing protection, face shields, forestry kits or welding protection. Also attachment points for chin straps etc. Comfortable 4-point nylon webbing suspensions with pin-lock or our exclusive SURE-LOCK ratchet adjustment to properly fit all head sizes large or small. Large printing surfaces for company logo's on front, sides back. CSA certified Type 1 Class E Z94.1-05. Meets ANSI Type I Class E Z89.1-2009.