| 摘要 |
<p>A personal flotation device having a buoyant collar, a front bib section containing a flotation element and a back member, the bib and back members having lower portions that may be overlapped so as to cooperate with the collar to define armholes, the collar having a central opening for the neck of the wearer. The collar comprises front and rear collar sections pivotally secured together on an axis extending diametrically of the neck receiving opening and transversely of the device.</p> |
