Not that I am recommending any one brand, there are lots of kayak style PFD manufacturers out there due to the popularity of that paddle sport right now; I run a Stohlquist and have been happy with it including its construction and fit. Ran a "Stern" before and I am amazed(if I can remember that far back) at how much cooler it is and then there is the mobility and fit!

Sorry, this might seem off topic but we're here The heat/hot thing is maybe the really hiccup in this area. Being over heated plan sucks and is really pretty hard on yah; just as bad cold or worse in my book. Acclimation makes all the difference in the world. I am in the heat everyday, no AC at home either; I am acclimated. For those that get AC'd everyday all day your not. So dawning another layer when your hot and not use to the work gets yah hotter; go swimming, wet a bandana and put on the your neck, drink the water, and don't forget to practice the wet entry especially if your soloing.

Oh yah PFDs are usually on sale at the end of the season.

I wonder if the folks that didn't come home this year practiced their wet entry?