USCG APPROVED The ONeill R&D process provides some of the best quality, fit and functionality in the industry. TheirUSCG approved life jackets continue to set standards of excellence in design for all wake and waterski athletes. FilterTech outer envelope 100% polyester lining Closed cell PVC marine foam Segmentedfoam core Anatomical flex points Concealed dual belt system Quick-release dual safety buckles Heavy duty front zipper Overlock stitched (super strong seams) Expansion panels