Brand new with packaging Retail £42 per fin From the speedo website: The Speedo Fury Training Fin - Red is a short training fin for improving your leg strength and edunrance. They have a unique design that increases resistance in the water. So you have to work harder for greater returns on your training. The Fury fins features dual-rails down the side of the fin that gives propulsion on the up and down beat of the kick. Helping you to perfect your kick technique.
