I gave these three stars because they are just okay for water aerobics.  A little slippery, not the greatest grip. The big problem is that one side of the strap on the left shoe came off the first 5 minutes in the water, 15 minutes later the second side detached.  25 minutes later, the right shoe was without a strap.  Luckily the shoes stayed on without the straps.  The feel like a less expensive Crocs type shoe when on. Good for the shower and locker room. Let me add that the shoes were roomy enough for my feet and I did not pull the straps tight. I just attached them to the velcro without pulling on them.