Finboard

The Finboard Elva X3 is an innovative, ergonomically designed body board
you can swim with fins as long as you like without getting tired.
Suitable for all skill levels, it’s perfect for fitness, for fun, and for simply flippering
around on the water.

It’s got great glide and will give many of your muscles (back, abs, legs, pelvis…)
an excellent but sensible workout.