• Wiggle your Toes! The unique Force Fin foot-pocket design transfers much of the effort of moving the blade to the largest muscle group in your body, the quadriceps, removing pressure from the toes and feet. Because your entire leg is now doing the work, muscle igue and ing is significantly reduced.
• Efficient! Force Fins are the only fins that provide propulsion consistent with your natural two-stroke kick cycle to this degree. By providing for more of a separate power and recovery phase, oxygen depletion is reduced, and the onset of igue is delayed. The result is that divers can kick continuously for longer periods of time..
• Fast! Have you ever seen a fast-swimming fish with a blunt or squared-off tail? Neither had we. That's why we patterned our fins after the split-V shape of fish tails that more efficiently channel the water.
• Convenient! Compact to fit into carry on..
• Environmental! Maneuvering closer in toward your foot makes you less likely to kick delicate reefes..

Divers propel themselves by moving their legs (and the increased surface area of their fins) back and forth against the water with a flutter kick motion. We naturally have more strength when kicking down. The power or downward phase of the kick emphasizes the powerful quadriceps muscle group at the front and side of the upper leg. The kick's upward phase uses the weaker hamstrings at the back of the thigh and is mainly a recovery movement setting up the leg for the next power phase. The result is a natural two-stroke kicking cycle of power and recovery for each leg. While most flat fins make you work just as hard on the recovery as on the power phase, Force Fins take advantage of this two-stroke cycle and work in harmony with the body's natural strength. The flexible blade of our Force Fin opens out to its maximum surface area to move a high volume of water during the powerful downward portion of the kick. At the end of the downstroke, the blade snaps back to its original position, driving water behind at a high velocity and catapulting you forward while at the same time resetting and helping to recover your leg upward for the next downbeat. During the recovery, the blade folds down, channeling water behind while limiting resistance to conserve your energy. (If you have to put the same a of energy into both parts of the kick, you igue much sooner.) Force Fins are the only fins that provide propulsion consistent with your natural two-stroke kick cycle to this degree. By providing for more of a separate power and recovery phase, oxygen depletion is reduced, and the onset of igue is delayed. The result is that divers can kick continuously for longer periods of time. Force Fins are made of an exclusive version of polyurethane that is heat-treated for 16 hours at temperatures that would melt other fins. Force Fins won't wilt when exposed to tropical heat, nor will they harden when ice diving.