FNP, I have four of them that I carry in my boat on the Sound and Ocean all the time. They are the Auto inflate as I believe in an emergency it may be hard to find the ripcord. I have everybody that fishes with me wear one. The only time I don't like them is on a flat calm hot summer day. Then they get a little warm. They do make a child's model that has built in inflation as well as the air. My daughter is fairly small and she don't mind wearing this one when I used to fight with her to wear normal life jackets.