ILM Carbon Fiber Full Brim Hard Hat for Men with 4-8 Point Suspension OSHA and ANSI Construction Safety Hat Model MS401Product Description Carbon Fiber: ILM full brim hard hat is made of tough carbon fiber, which is not only lightweight but also provides better protection in construction. Even if you use it for a long period of time, it won't be too much of a burden on your cervical spine. OSHA and ASIN: In compliance with the Occupational Safety and Health Administration(OSHA) and ANSI ISEA Z89. 1 Type 1 Class C Standards, the ILM construction hard hats always