NRS cVest Mesh Back PFDType III PFD. Designed with offshore sea kayakers in mind, the NRS cVest Life Jacket has pockets and attachment points for all the essentials. It also has lots of reflective tape and a cool mesh back that works great with high back seats. Designed with offshore sea kayakers in mind, the NRS cVest Life Jacket has pockets and attachment points for all the essentials. It also has lots of reflective tape and a cool mesh back that works great with high