The Saber fins have drag reducing vents and are lightweight and flexible. The full foot fins have soft TPR foot pockets for added comfort. The open heel fins have adjustable quick release buckles to make removing the fins at the end of the dive easy. The pre-arched shape of the blade scoops water throughout the kick providing maximum thrust with less effort. The open heel fins are compatible with the Tilos FN061 Silicone Stretch straps which make getting the fins on and off much easier and quicker.