A.A.
the best thing we bought for our daughter was a puddle jumper from dicks sporting goods. it goes on there arms and around the waist and then has the 2 straps that go under there legs and its so comfortable for them. My daughter hates the life jackets and loves the puddle jumper. It allows them to float straight up in the water and not on there back or on the front like some life jackets make you fall to the back or front in the water. It also helps her learn to swim. It is Coast Gaurd approved! We love it and will only buy those. Def. dont do arm floaties because to many kids slip out of those and they can make them tip face forward in the water.