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A helmet, which includes an injection molded shell having an inner surface and an outer surface, the injection molded shell including a first main body portion and a second main body portion, wherein the first and second main body portions are formed of a first material; and a first molded hinge por

A helmet, which includes an injection molded shell having an inner surface and an outer surface, the injection molded shell including a first main body portion and a second main body portion, wherein the first and second main body portions are formed of a first material; and a first molded hinge portion formed intermediate the first and second main body portions, the molded hinge portion adapted to allow the first main body portion and the second main body portion to move relative to each other.

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1. A helmet comprising: a shell having a plurality of sections, wherein each section has an exterior surface and an interior surface;a molded hinge formed intermediate to at least two adjacent shell sections and allowing the at least two sections to move relative to each other;a liner having a hinge

1. A helmet comprising: a shell having a plurality of sections, wherein each section has an exterior surface and an interior surface;a molded hinge formed intermediate to at least two adjacent shell sections and allowing the at least two sections to move relative to each other;a liner having a hinge allowing a portion of the liner to move relative to the liner; andan inflatable bladder disposed intermediate to the interior surface of the shell and the liner, the inflatable bladder having a portion disposed on the movable liner portion. 2. The helmet of claim 1, wherein an inflatable air pocket of the inflatable bladder is disposed on the movable liner portion such that when the air pocket is inflated the movable liner portion moves away from a portion of the shell. 3. The helmet of claim 1, further comprising a depression formed in the liner. 4. The helmet of claim 3, wherein the inflatable bladder includes a plurality of air pockets fluidly connected through a channel, and wherein the bladder channel is disposed in the liner depression. 5. The helmet of claim 1, wherein the shell is formed of a first material and the molded hinge is formed of a second material, and wherein the first material and the second material are different materials. 6. The helmet of claim 5, wherein the second material is more flexible than the first material. 7. The helmet of claim 1, further comprising an over-molded bumper provided on at least one of the plurality of shell sections. 8. The helmet of claim 7, wherein the shell is formed of a first material and the over-molded bumper is formed of a second material, and wherein the first material and the second material are different materials. 9. The helmet of claim 8, wherein the first material has a different hardness than the second material. 10. The helmet of claim 1, wherein the molded hinge forms a boundary between adjacent shell sections. 11. The helmet of claim 1, further comprising a flex zone located on a lower rear perimeter of the shell, wherein the flex zone is formed of a more flexible material than the material of the shell. 12. The helmet of claim 1, wherein the liner hinge comprises a molded hinge. 13. The helmet of claim 1, wherein the liner includes a plurality of hinges. 14. A helmet comprising: a shell having a plurality of sections, wherein each section has an exterior surface and an interior surface;a molded hinge formed intermediate to at least two adjacent shell sections and allowing the at least two sections to move relative to each other;an inflatable bladder coupled to a portion of the interior surface of the shell, the inflatable bladder having a plurality of fluidly connected air pockets;an impact liner for reducing the impact forces acting on a user's head during use, the impact liner having a hinge to allow a portion of the liner to move, wherein an air pocket is disposed on the movable liner portion; andan inflation mechanism fluidly connected to the inflatable bladder. 15. The helmet of claim 14, wherein the liner hinge comprises a molded hinge. 16. The helmet of claim 14, wherein the inflation mechanism is proximate a rear portion of the shell. 17. The helmet of claim 14, further comprising a fluid release mechanism fluidly connected to the inflatable bladder. 18. The helmet of claim 17, wherein the inflation mechanism and the fluid release mechanism are the same device. 19. The helmet of claim 14, further comprising a second liner discrete from the impact liner, wherein at least a portion of the impact liner is disposed intermediate the second liner and the interior surface of the shell.