Patent ID: 6854133

Claim:
Protective headgear configured for protection of a portion of a wearer's head, comprising: a shell; a layered composite liner including a multiplicity of deformable layers, each layer having a different stiffness than adjacent layers, and wherein a layer has a higher stiffness than that of adjacent layers on either side; a retention system configured to resist upward/rearward rotation of the headgear with respect to the wearer's head, further comprising a chin strap portion attaching the chin strap portion and fastening means slidably attaching the chin strap portion to the shell at a forward attachment location, said chin strap portion integral with a nape strap portion for extending behind and engaging the wearer's head at the nape of a neck, configured so that when a force is placed upon the shell tending to rotate it up and back so as to expose a wearer's forehead, tension is created in said strap portions, thereby pulling the shell toward the wearer's head, increasing friction between the wearer's head and the headgear and resisting upward/rearward rotation of the headgear with respect to the wearer's head.