I dive Cressi Frogfin Plus fins and in June I purchased Cresses bungee strap which was a nice strap but after a month and a half of diving the bungee broke. I noticed there were a lot of universal metal spring straps out there and was curious of any of them were really good. If I can’t find a metal strap that works with the Cressi I will probably change my fins out. I would the bungee strap lasted longer than about 15 dives so I am looking for something that can stand up to a few more dives.