J.B.
I can't remember the brand name, but you can find them at WalMart and Target -there are toddler jackets that have the built-in safety device where the body is automatically going to be turned face-up so the head is out of the water. My son has worn one since he was around 18 months. One Step Ahead also makes a great one where you can remove the floaty pads bit by bit as your child learns to swim.