I really like these fins. I can get them on and off quickly in the pool, they feel fast and look good too. I regularly do a particular swim using these with a kick board for 1k (5x 200s, front and back) and find them comfortable for the duration. Unlike others, I like the rigidity of these fins as they really work the legs and allow you to really feel your leg position in the water. Arguably not for weaker or beginner swimmers, as I assume they would punish poor kicking technique or leg position and be quite exhausting. A softer fin may be better if you are still working on technique. But if you are a relatively strong swimmer, personally I think these are great…

I bought these as they looked good. I am a size 9 for shoes to got the 9-10 size fins.  They are tight, very rigid and feel uncomfortable against the to of my feet.

they work legs and allow lot of ankle flexibility and strengthen ankles.a little rubbing on the first wear but ok now

Great look.Too rigid, not a comfortable fit.