I use them with my dogs. I like them a lot. They get a bit of floatation with them as well as the added warmth. I also like them in late season because of the protection they get busting ice and whatnot. I have a Drake brand one that I have now and really like. Just make sure you measure your dog and get the correct size. Also you will probably have to trim up round the front armpits because if it is too tight, it'll rub your dog raw. I absolutely recommend getting one if you hunt in cold weather.