I just purchased this new model of Kokatat life vest. There are lots of good PFDs out there, but this has a feature I haven't yet seen in other brands: a built-in back slot meant to hold a hydration bladder. It also has good pockets in front to hold my small waterproof camera, radio/emergency beacon and other necessities. Be aware that this is at the top of the flotation curve ... there is much padding in the front to turn you over if you find yourself swimming. I got the "women's" model, which I think is just a matter of a different color, not internal design.