The ankle swimfin leashes attach on one side to the ankle with a padded velcro, and on the other side to the fin with a lace. They are very comfortable and will prevent you from losing your bodyboard swimfins. This is the most classic and widely used bodyboard swimfin leash system.
It is a bodyboard swimfins leash model, which, as its name suggests, is attached to the ankle with velcro, and it is connected to your bodyboard fins by a small rope.
Like any bodyboard swimfins leash, its purpose is to prevent losing your fins during your surfing session, especially when falling or tumbling in the water.
