Apollo Bio-Fin Pro XT Extra Torque Fins

BIO-FIN PRO XT (Rubber Strap) and BIO-FIN PRO XT C-Series (Spring Strap) Comes in GRAY only 20° angled blade for a fin shape that works with the natural resting angles of ankle and knee - very low strain 100% rubber material for optimum weight and flexibility Up to 40% reduction in muscle fatigue, energy use, and air consumption; longest recorded bottom times during testing Increasing durometer to 75 rather than changing base material creates a stiffer blade that retains a high degree of the comfort and performance found in the original bio-fin pro 30% stiffer blade Increased control and added leverage for technical divers Works as well or better than paddle fins with any kicking style Foot pocket is open at the toe for added comfort Easy quick release system with finger loop for easy access