I used to have a set of breaststroke fins that were stolen out of the back of my car. I believe they were made by Speedo. They fit the foot tightly, had an opening for toes, and a curved blade on the bottom that worked amazingly well with the breaststroke kick.
I have looked high and low (EBay, Amazon, Speedo, etc.) and I can only find size XXS. Does anyone know where I can get another set, or if you are someone with spare gear, I am willing to buy them from you for a reasonable price. I am size 10.5 US men.