AERO-JET FOAM - Soft, light, and pillow-like composite foam that provides durability and minimal water absorption with Flex-lite an insanely flexible, soft, and lightweight. The jersey is extremely soft and smooth while the internal foam is lightweight and holds less water than other foams. The 15 panel segmentation foam is cut and segmented into pockets throughout the vest for added comfort and mobility. The internal duel buckle is a USCG approved type 3 vest has 2 buckles and a front zip. Internal or enclosed straps reduce the potential for twisting, snags, or tangles and provide a clean look. The YKK premium zippers won't break or lock-up, seizing the zip head and causing headaches when you're just trying to have FUN. The zipper teeth are coated with high strength, UV treated plastic to increase durability