As one of the first items that people purchase, fins often have less thought put into them than any other piece of equipment.
Fins deserve more thought than they are often given.
In recent times, fins have become more exciting. This has changed. As an early adopter of the V-Drives, I believe that they are an excellent fin, that provide more power that standard paddle fins. At this point in time, fins evolved from being a relatively stable product to a highly competitive market place. With each fin having a split blade, the theory behind the Bio Fins is that the diver will gain improved thrust from the more natural displacement of water.