| 摘要 |
The invention concerns a pair of swim fins for breaststroke or various movements in an aquatic medium, exhibiting minimum resistance thereby enabling the free movement of legs and a support for the breaststroke kick and the leg closing movement. Each fin consists of an inner boot (1) which maintains the foot and a round-shaped upper (2) fixed thereto capable of being folded or blocked depending on the applied forces and orientations. The pair of fins is particularly suited for learning how to swim, enables a lifesaver to pedal backwards, pedalling and various aerobic exercises, and breast stroke swimming with fins while keeping the head above the water surface.
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