The side rails --- the “strakes”--- on Da FIN are rock solid but run only about half way down the length of the fin where they angle back to the blade. This forces the fin to flex right at this critical point. The raised v-shaped foot pocket combined with a stiff blade working together at the point of flex creates maximum acceleration of the water flowing over the fin surface resulting in more thrust per kick with less effort. For such a powerful fin, it is unusually light in weight. Da FIN floats in the ocean and there is no right or left foot difference so Da FIN can be worn on either foot.

Mark Cunningham - 'DaFiN is the only swim fin I use both professionally and for recreation. Power & comfort are the two utmost things I need in a pair of fins. DaFiN delivers on both & more.'

Brian Keaulana - 'DaFiN has come up with a design that totally suits my needs in ocean situations. Flexibility and strength are the two utmost things I need in a pair of fins. DaFiN has both and more.'

Mike Trisler - 'I give my strongest recommendation for DaFiN as the best fin on the market today. I have used DaFiN since its initial development over 10 years ago and have compared it to every fin currently produced. DaFiN is without equal.'

Jack McCoy - 'The best fin in the world.'