For yound children 30-50 lbs. with some swimming ablity. Softest foam and top quality fabric assures comfort and excellent fit. Active children lide how the flatte collar stays out of the way, yet supports the head in the water when needed. Grab loop designed to hold the full weight of a wet child, and crotch strap keeps them in securely when lifting out of the boat or water. Perfect for paddling or anytime palying around water.