Medium-length, open-heel fins designed for diving. They are recommended for use with neoprene socks or diving boots. The blades are made of two different materials, which improves flexibility and comfort. The central part of the blade is made of elastic rubber. This blade solution is called the "tunnel effect". The upper part of the foot pocket is an extension of the blade and increases the effective paddling area: the entire surface of the fin is retracted, so even with a medium-length fin, greater paddling force can be achieved when needed. The force is evenly distributed across the entire blade, which helps reduce stress on the swimmer's ankle. The blades also have "sleek" edges made of durable rubber. The fins have a wide rubber strap that comfortably fixes the foot in the fins. The buckles can be quickly and conveniently unfastened to remove or put the fin on the foot. The length of the rear strap can also be adjusted to make it convenient to attach the fin to the leg. The straps can be freely rotated up and down, making swimming Scorpena Fjord also very comfortable. The lacing system of these fins allows you to replace the rubber strap with a spring strap. A special hole is made in the front lower part of the foot pocket (on the nose) to drain excess water and sand from the pocket. The length of the blade (from the toe of the foot pocket) is 40 cm. The width of the blade (at the tip) is 25 cm.