JOBE 4 BUCKLE VEST RED Safety first, but good looks do matter. Jobe's sharp-looking 4 Buckle Vest is a 50N buoyancy aid and is fully constructed with the strongest nylon. Both the front- and the side of the Buckle Vest is constructed with soft PVC-foam panels to offer comfort and give additional protection.. This buoyancy aid comes with a D-ring to connect with an emergency cord and has a Jobe's custom water draining system to ensure the water drains quickly when necessary.