The Mustang with hydrostatic is Type II and counts whether worn or not. If its your only PFD the cheap SOS is type V when not worn, and will get you a ticket for not having a PFD if you do not have another in the boat.–Bob La Londe Forums, Free Lures, Product Reviewswww.YumaBassMan.com CNC Molds N Stuffwww.CNCMOLDS.com