| 摘要 |
Protective helmet that includes a shell adapted to protect a user's head, an inner lining, and a headband having an adjusting device. The adjusting device includes two gripping members adapted to be manually moved towards or away from one another by the user in order to vary a size of the headband. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
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