LIMITED EDITION - BODYBOARD FINS - TEAM SPEC B - M/L - LIME/GREY - BRAND NEW FROM AUSTRALIA - RARE HIGH PERFORMANCE BODYBOARD FINS FEATURES: •FORMULATED MALAYSIAN NATURAL RUBBER FOR FLOATATION AND COMFORT. •CENTER STRUT FOR BLADE STRENGTH, FLEXIBILITY, AND THRUST. •BEVELED HEEL STRAP TO ASSIST ELIMINATION OF CHAFING. •DRAINAGE HOLE FOR RAPID RELEASE OF SAND AND WATER. •STIFF BLADE DESIGNED FOR MAXIMUM PERFORMANCE AND THRUST. •SIZE MEDIUM/LARGE - (USA MEDIUM-LARGE 9 - 10.5) I WOULD SAY THESE FINS ARE AS FLEXIBLE AS THE CLASSIC MAKAPUU CHURCHILL FINS. http://www.ebay.com/itm/LIMITED-EDITION-BODYBOARD-FINS-M-L-TEAM-SPEC-B-LIME-GREY-NEW-FROM-AUS-/171307753949?pt=LH_DefaultDomain_0&hash=item27e2bce1dd