Designed for the active boater, skier, or tuber and provides smooth comfort and a low profile when twisting and turning during your active water sports activities. Stretchable Flex-Back insert provides improved fit allowing for freedom of movementSegmented hinge points provide maximum flexibility and comfort while keeping you coolerRapid-Dry four-way stretch fabricFront zipper with adjustable belts allows for a secure fitU.S. Coast Guard approved