Meets ansi specifications: z89.1-2003 0086, type i en 397:1995, class e . G and c, this hard hat is designed to offer head protection by reducing injury to industrial ans structural workers, but will not provide unlimited protection. This product is for head protection against falling objects but not unbreakable. Comes with adjustable headband, easy to use, light weight, weight: 1.65 Lbs.