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SUMI WERE DESIGNED TO PRODUCE PROPULSION EFFICIENCY. THE END RESULT IS A PAIR OF FINS WHICH ARE NOT ONLY EASY TO KICK WITH BUT EXCELLENT MOMENTUM IS CREATED TO QUICKLY PROPEL THE DIVER FORWARD.
The fin’s foot pocket fitting is the result of our extended research and manufacturing experience. This is an often neglected criterion when divers choose their fins. We are confident that SUMI are one of the most comfortable fins that people put on.
There are 6 water channelling guides on top of the fin blade to direct a large amount of water backwards and the 22º blade-to-foot angle provides the best kicking efficiency.