Kid's 100N Lifejacket from TWF.  Features: Crotch Strap Scothlite Reflective Panels on Collar Full Zip and Belt Closure Clip away whistle ISO 12402-4  We say - for younger children we always recommend Life Jackets instead of Buoyancy aids.  Lifejackets, if properly worn and in good condition, are designed to keep your airways clear of water, even if you are unconscious or injured.  They are able to turn your body over and bring your head and face out of the water, even when you are unconscious, keeping you protected.