The foil impact vest has clash foam plates and sturdy NBR foam to protect your spine making it perfect for foil surfing. You will wipe-out hard on your first couple of tries believe us. It comes with top of the line m-flex 2.0 neoprene lined with knitflex on the outside and flaremesh on the inside for quick dry properties. Features: Knitflex YKK Front-zip Clash foam Zipper Lock Non-padded harness waist part Spine protection (NBR) Please note: This is not a floatation device / buoyancy aid