So, I recently bought the FINIS, F-I-N-I-S, swim paddles. They somewhat magically lengthen out my freestyle stroke. And when I combined them with some fins, I use the ones Cressi, C-R-E-S-S-I, I feel sometimes like I’m almost flying through the water.
Recorded Tim Ferriss, The Tim Ferriss Show podcast, 6 February 2018 source ↗