You didn't mention what type of kayaking you are referring to, so I will have to assume that it is on the ocean, lake or pond. If it is for white water, them the information is not correct. I have used a Kokatat PFD for, I think, almost 20 years and their design hasn't changed a lot over that time. There are 2 versions for both women and men.
Some of the Kokatat PFD advantages are:
1. Pockets are large enough for a VHF radio, waterproof camera, GPS, etc.
2. I have a knife and a whistle attached to the PFD.
3. I have a water bladder in the back pocket and the tube comes over to the front and slips under the strap to hold the tube.
4. I have a warning light attached to the top of the strap.
5. The pockets have key holders.
6. In the 3rd pocket I have room for Croakies (eyeglass holder, suntan lotion, etc.)
Here's a PFD article that will definitely help you out:
How To Choose A PFD
I hope the above has helped you a bit.