Mares Avanti Quattro+ Diving FinThe Avanti Quattro + diving fins exceed the established performance of the traditional model thanks to the use of new materials that optimise efficiency. Increased responsiveness and thrust power with an even more attractive look and a standard Bungee Strap. The proven Channel Thrust technology makes the fin versatile and perfect in all diving conditions. The stabilising drifts improve stability, eliminating ankle torsion. The anatomical foot pocket