Asymmetric fishtail flippers promote a more natural kicking motion for swimmers

July 24, 2007 The idea of attaching fish-like fins to the body to propel us more efficiently through the water occurred to many early inventors, including Leonardo da Vinci, but it wasn’t until the early 1940s that flippers came into actual use – in this case, for the US Navy’s underwater demolition teams. Since then, they’ve become popular around the world for skin diving, snorkeling and swimming training. Look at the tails of fast fish, however, and you’ll notice that none of them sport a flat-edged tail – and it’s this observation that has driven Italian swim fin specialists Salvas to develop a new asymmetric fin design to get maximal kicking power out of a swimmer while promoting a more natural kicking motion than many standard fins.

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