| 摘要 |
The invention is directed to a protective helmet comprising a formed plastic foam shell having an internal plastic infrastructure embedded at least partially therein. The embedded infrastructure provides increased shock absorption characteristics for a wearer during use. The helmet can also include either a thin plastic outer microshell or a thicker relatively rigid plastic outer shell, with a padding material attached to the inner surface of the reinforced foam shell, and a retention strap attached to the plastic outer shell.
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