Please see this brief slide show announcing our latest working (v3) prototypes:

They have HIT THE WATER!!

We are using our latest protoypes as test instruments to validate design and optimize sizes and shapes.

Note how the small foils on the inside of the leg fold out during the DOWN stroke and then fold away and stow during the UP Stroke. Also, our folding model show how foils will fold up and out of the way.

Our commercial products may be considerably slimmer than these on your legs by the time we complete production designs.

NOTE: The finger grip for the fin unlock & folding function is the BLUE RING in the images.