■ HIGH-QUALITY NATURAL RUBBER WITH REINFORCING RIBS ■ THIS HIGH-PERFORMANCE FIN MADE OF PRACTICALLY INDESTRUCTIBLE NATURAL RUBBER IS IDEAL FOR EVERY TYPE OF FINS, BUT ESPECIALLY FOR THE FROG-KICK. ■ WHEN DRY DIVING, DESIRED DRIVING DUE TO THE EXCLUSIVE USE OF RUBBER AND STEEL BUNGEES ■ IN CONTRAST TO COMPETITIVE FINS, THE MARES RUBBER FLOORS OFFER FULLY SHAPED FOOT PARTS ■ INCLUDED FOOT PARTS. XR SPRING STRAPS ■ BAND / FIN SIZE: ■ FIN SIZE S WITH BAND SIZE R ■ FIN SIZE R WITH BAND SIZE XL ■ FIN SIZE XL WITH BAND SIZE XXL ■ FIN SIZE XXL WITH BAND SIZE XXL