The foil 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. Item features CE approved YKK Front zip Clash foam Spine protection (NBR) Non-padded harness waist part Zipper lock Please note: This is not a floatation device / buoyancy aid Materials M-Flex 2.0 (100%) Knitflex Flaremesh inside