NABAIJI by decathlon Swimming Fins Tonifins 500 Blue Coral

Our design teams developed these swimming fins for intermediate swimmers who want to build up muscle on the back of their legs and buttocks.

WHAT ARE SWIMMING FINS USED FOR?

Swimming fins are training accessories that help to make your muscles work harder in the lower body. The efforts you make when exercising will improve your heart rate and strengthen your abdominals and your lower body (thighs, glutes, calves). The efforts you make when swimming with fins burn up fat and tone up your body shape.

A DECATHLON INNOVATION

A lot of female swimmers use swimming fins to strengthen their legs. Conventional fins focus the effort on the quadriceps and the hamstrings and buttocks work very little.

We designed these pool fins with a blade at a 38° angle to strengthen these muscles by increasing resistance when the fin moves upwards and decreasing the effort as the fin moves downwards.

FIN TESTS

150 tests carried out have allowed us to measure an increase in muscle use of 19% on the hamstrings and 27% on the buttocks*.
*measurements in comparison with the Silifins fin