Patent ID: 8296868

Claim:
An adjustable helmet, comprising: a first shell; a second shell engaged with the first shell; a plurality of substantially rigid straps connected to the first shell and extending into a rear interior region of the second shell, with each of the straps including an opening; a cam assembly comprising: a cam handle attached to a rear exterior region of the second shell; a cam post extending from the cam handle into the rear interior region of the second shell and through the openings in the straps; a cam plate attached to an end of the cam post; wherein the cam handle is movable between: a closed position in which the cam plate presses the straps directly or indirectly against an interior surface of the second shell, such that the first shell is prevented from being longitudinally adjusted relative to the second shell, and an open position in which the straps are free to move about the cam post such that the first shell may be longitudinally adjusted relative to the second shell.