| 摘要 |
Shin Fins are for the lower part of the leg, instead of the foot. The bridge alone attached to the swimsuit will produce a forward thrust, just as standard fins do. Yet, for Shin Fins with the pad bracket, bridge, fins and fin tips on the forward and reverse strokes, the water is funneled between the leg and fin along the bridge towards the foot. As the water passes over, under, and around the funneling tips of the fin, the water is directed over and under the foot, not just around the foot. On both forward and reverse strokes, the funneling tips cut through the water and funnel water above and below the foot, providing thrust on both directions of strokes.
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