A good kayak PFD should work with the seat, stay out of the way while paddling or casting, and remain comfortable enough to wear for hours. Fishing adds a few useful requirements, but storage should remain secondary to fit.
For many people, a Personal Flotation Device (PFD) still means the inexpensive orange vest stored beneath a boat seat. That kind of vest provides flotation, but it is a poor reference point for kayaking. A paddler spends hours sitting against a seat, rotating through paddle strokes, reaching around the boat and working close to the water. Fishing adds casting, landing fish and handling gear. A PFD designed for that environment looks and feels different from one meant simply to satisfy the equipment requirements aboard a powerboat.
For recreational kayaking, I would start with an inherently buoyant foam PFD designed specifically for paddling. The important features are fairly simple: a back that works with the kayak seat, enough room through the shoulders and arms to move normally, proper adjustment, and a fit comfortable enough to leave the vest on all day.
Look at the Back First
Fishing kayaks often have substantial framed seats with relatively high backs. A conventional vest with thick flotation extending down the spine can put several inches of foam directly between the paddler and the seat. Something that feels acceptable while standing can become irritating after an hour because the seat is constantly pushing the vest forward.
Kayak-specific PFDs usually move the rear flotation higher, thin the lower section, or use mesh where the seat meets the lower back. That is one of the easiest useful features to evaluate before buying. Look at photographs of the back of the vest and compare the flotation position with the seat in the kayak you actually use.
The shoulders and arm openings matter for the same reason. A vest should remain secure without restricting a paddle stroke or cast. Fishing also involves reaching behind the seat, leaning over the side and moving around equipment, so excess bulk around the upper arms becomes noticeable quickly.
Fit still has to be correct. Buy a PFD approved for the wearer and intended use, follow the sizing information on the label, and adjust it snugly enough that it cannot simply ride up over the shoulders. Once you own it, wear it in the actual kayak and get into controlled water with it.
Why I Prefer Foam
Inflatable PFDs can be lighter and less bulky than foam, and modern automatic systems are considerably better than the crude image of a device that inflates every time it gets splashed. I still would not choose one for kayaking.
The difference is the amount of normal contact a kayaker has with the water. Stepping out into shallow water, slipping while launching, falling from the kayak or deliberately entering the water during self-rescue practice are all plausible parts of kayaking. A foam PFD is already providing flotation throughout all of them. There is no cylinder, activation mechanism or deployment event involved.
Comfort is the strongest argument for an inflatable, but that comparison is often made against the wrong foam vest. A purpose-built paddling PFD with a seat-compatible back and unrestricted shoulders is quite different from the bulky general-purpose life jackets many people remember. I have spent long days fishing in one without finding the flotation itself objectionable. For kayaking, I prefer that simplicity.
A Fishing PFD Is Not a Fishing Vest
Fishing-specific PFDs often come covered in pockets, loops and attachment points. Some of those features are useful, but a kayak fisherman has much less need for body-mounted storage than a wading angler.
A fly fisherman standing in a river may have to carry flies, tippet, leaders and tools on his body because there is nowhere else to put them. An angler is sitting in a kayak full of hatches, tackle boxes, trays and storage. There is little reason to move all of that equipment onto the chest.
My own NRS Chinook carries only the things I specifically want to remain attached to me if I leave the kayak. My phone stays in the right front pocket and is tethered to the PFD. The left pocket holds my identification and fishing license along with a tethered whistle. A river knife is mounted separately where I can reach it from the seat. The rest of my fishing equipment stays aboard the kayak.
Two PFDs We Actually Use
My wife uses an Onyx MoveVent, and we keep another MoveVent in a different size as a spare. For ordinary recreational kayaking, it gets the important things right. The lower-back design works with a kayak seat, it has enough adjustment to fit correctly, and it leaves the shoulders free to paddle. For a few basic kayak outings, I would have no problem recommending it.
The only caution with a shared or spare PFD is sizing. A vest that can physically be tightened around someone is not necessarily approved for that person. The size and weight range on the individual label still controls.
For kayak fishing, I would spend more and buy the NRS Chinook. I bought mine more than five years ago because it was reasonably priced, well reviewed, clearly designed around sitting in a kayak seat for long periods, and had the two front pockets I actually wanted.
Five years later, it has given me very little to complain about. It works with the seat, does not interfere materially with casting or moving around the kayak, and gives my phone, whistle, ID and license sensible places to live. I would buy another one.
The Chinook has more fishing-specific storage and hardware than I need, but those features are not the reason I recommend it. The fit and seat design are. For ordinary paddling, the simpler Onyx is entirely adequate. For fishing, the Chinook has been worth the additional cost.
Choosing Around the Kayak
The useful way to shop for a kayak PFD is to begin with the kayak. Look at where the seat contacts your back, then find a paddling PFD whose flotation stays out of that space. Make sure the shoulders and arms can move freely and that the vest adjusts securely in the correct size. If fishing is part of the trip, a couple of pockets and sensible attachment points are useful, but the kayak itself should carry most of the gear.
After several hours on the water, I mainly want a PFD to remain where I adjusted it, stay clear of the seat and my casting motion, and give me no reason to take it off. The Chinook has done that for me. The MoveVent has done the same job well enough for simpler paddling. That is about as complicated as the decision needs to be.
PFD choice is only one part of a practical loadout. What safety gear belongs on a river fishing kayak depends on the boat, the water, the trip, and where each item will remain accessible when it is needed.