Abstract: A protective helmet, comprising, in combination, an open shell (or bell) covering the wearer's head and provided, in register with the wearer's eyes, with a transverse opening said shell being internally coated with at least one layer of appropriate thickness made of an elastic and resilient material, adapted to dampen shocks, and a hood with ears, directly fixed to the inside of the shell and adapted to be tightly wrapped over the wearer's skull, nape and temples, said hood being an extention of said shell and being provided with side straps for securing the helmet under the wearer's chin.