The best PFD I've ever had is a Seda. It's the old kind with vertical channels that hold blocks of flotation material. It has a heavy-duty zipper and a belt, along with two chest pockets. It's very comfy and ventilates better than smooth-surfaced models like Extrasport. When my red one wears out I'll shift to the yellow one. I have a third one, a large-size yellow one that fits nicely over a jacket.
Of course, they aren't made any more.
And no, they aren't for sale.