| 摘要 |
A helmet comprises a helmet lining; a helmet shell and an impact absorbing crash element for interposition between the helmet lining and a helmet shell, the helmet lining comprising a curved first part adapted to cover the nape of the neck and a curved second part adapted to cover the forehead, the first and second part being interconnected and arranged to be detachably secured to the crash element. The helmet lining is an example of a number of uses of an item of headgear to which accessories can be attached. |
