The Life Jacket Infant , it's a simple design with front YKK zipper for baby swimming in pool or training in the swim school. Seaskin's Toddler Life Jacket or Life Vest is made from soft neoprene SBR in 2mm, and laminated with standard nylon ( 4 way stretch ), inner is 4-6 cm EPE foam, safe and confirmtable. And Life Jacket Infant, we have two different styles, one is removable EPE foam and another one is non-removable EPE foam. So you guys can choose what you prefer for your baby.