David's right: Go to a good Kayak store where they have a lot of selections and get one that fits well. I personally like one with pockets so I can keep my radio, cat key, knife, and a whistle very close by. In cooler weather I put my spray smock over the PFD so I can quickly remove it when things get too warm.

I like Jake's idea of sewing the camelback to the back of the jacket. I wonder if I could be that handy? I might sail better if I use this than reach for a beer everytime I get thirsty.

Wyatt