Mares Avanti Quattro 4X Open Heel Diving Fins Color:Black/Yellow Fluo Pulse ox sensor: Track your

Pulse ox sensor: Track your blood oxygen saturation while you’re awake or asleep

Ergonomic silicone facepiece for a comfortable and secure fit

very hydrodynamic with a rubber ring knife attachment

Sherwood's new onyx mask has a stealthy matte black finish that is perfect for the underwater hunter

in a step toward sustainable design

Mares Avanti Quattro 4X Open Heel Diving Fins Color:Black/Yellow Fluo Pulse ox sensor: Track yourThe Mares Avanti QUATTRO 4X is the next generation open heel fin, combining comfort, power, and control. With a three material blade, optimized foot pocket, and 4 channel thrust system, it delivers efficient propulsion and all day comfort. Features include stabilizing ribs, bungee strap, anatomical heel pad, and a reusable mesh bag. Key features: Three material construction for performance and comfort: The entire fin is made from three different