Apollo Bio-Fin Pro-C (Spring Strap)

BIO-FIN PRO C-Series Stainless steel spring strap factory installed 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 Increased maximum speed and reduced fatigue Up to 40% reduction in muscle fatigue, energy use, and air consumption; longest recorded bottom times during testing Excellent maneuverability and position control Foot pocket is open at the toe for added comfort