This lightweight self-inflating PFD provides 22.5 lbs. of flotation Folds compactly into a low-profile horse-collar style jacket Secures with a waist buckle when deflated Integrated bladder instantly inflates with CO2 gas pressure when immersed in water Zippered pocket w/ internal tether for keys or a whistle The NRS Matik Inflatable Lifejacket (PFD) - The NRS Matik Inflatable Lifejacket (PFD) resembles a traditional lifevest with the compact convenience of an inflatable. An alternative to waist-belted PFDs, the lightweight, low-profile Matik gives you on-demand flotation that doesn't get in your way stand-up paddling, fishing or wading. Made with PFAS chemicals.