Stretchable Flex-Back insert provides improved fit allowing for freedom of movement. Five segmented hinge points provides enhanced flexibility and comfort. Lightweight Rapid-Dry fabric in bold designs provides a four-way stretch with a soft feel that dries quickly. Front zipper with adjustable waist belts and covered leg strap to keep vest from riding up. Fits children 33-55 lbs. U.S. Coast Guard approved and Transport Canada approved.