The Water Wings vest provides fixed buoyancy and encourages a natural swimming position to get little ones used to using their arms and legs to move around in the water. The Water Wing Vest features a neoprene body and super soft sleeves. The foam floats are strategically sewn into the arms and shoulders to provide exceptional buoyancy and ease of movement. The vest features a back zip with a tab to hold it in place, so little ones won't be able to remove the vest in the pool. The sleeves help to stop the jacket from riding up around the neck, so children can build their swim confidence in comfort with this fantastic vest