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No back problems: swimming exercise fins


Tony gets no back problems when he uses his shinfinTM fins for exercise swimming. Also, he doesn’t get the calf or foot cramping that he gets with regular foot fins. So overall, he finds them very comfortable.

Tony’s review from Kiama Downs, Australia

“They certainly do not cause my lower back any problems when swimming. Very comfortable and have no problems with calf or foot cramping I get with normal fins.”

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Cardio exercise to strengthen kick: fins without cramps


Katsuji gets a good cardio exercise workout from his shinfinTM fins while he is strengthening his kick. Furthermore, they don’t give him the cramps that he gets with regular foot fins like Zoomer.

Katsuji’s review from Mandaluyong, Philippines

“Thank you for great invention!”