Or PFD - No PFD?
I've worn an impact vest in the past but much prefer the twofold job of a PFD (Personal Flotation Device)
Been using a maui Magic one since day 1 but the zip is now regularly sticking with the salt/corrosion and the elastic of it's cumberbund is stretched. I've been looking at replacing it with the Neil Pryde Elite Bouyancy Aid. Seen here under the 'sailing' section of: http://www.cleatsandblocks.co.uk/neil-p
Or the Crewsaver Kite Bouyancy Aid seen at:http://www.crew-safe.co.uk/acatalog/Cre
Also all three mentioned are 'CE' approved. An important consideration in my books.