Mares X Stream Open Heel Fins

Mares X Stream Fins are a new breakthrough in technology, power and maneuverability. Mares considers this the pinnacle of their fin technology, featuring four more patents. Features an all new foot pocket with no parachute effect. Designed with minimal mass with the most possible thrust. New OPB (the way the fin flexes) always results in forward thrust. The buckles are Mares' ABS buckles and fin straps. These fins are in incredibly light, before we've never held a fin with so much power with a huge reduction in weight.