Diving Fins - Mares Avanti Quattro Plus - Restyling of a legend, comes equipped with the patented Mares bungee strap   • Increased efficiency with the use of new hi-flex material • Four channels - four times the thrusting power • Bungee strap   The new Avanti Quattro + fins exceeds the established performance of the traditional model thanks to the use of new materials that optimize efficiency. Greater responsiveness and thrusting power with an even more attractive look. New Bungee Strap is provided standard.   Proven Channel Thrust technology makes the fins versatile and ideal in all diving conditions. The stabilizers improve stability, eliminating ankle twisting phenomena. The anatomical foot pocket conveys more power to the blade.   US6-9 = Small, US9-11 = Regular and US11-13 = Extra Large US7-10 = Small, US10-12 = Regular and US12-14 = Extra Large Also check out  the variety of gear we carry visit : https://gs-diving.com/fins/ Also check out Dive Singapore for the variety of gear we carry visit : https://www.divesingapore.sg/product-category/scuba-equipments/