The Salvimar Step Foot Pocket is design for use with the Next and React Fin Blades. The foot pocket is made from thermoplastic with differentiated thickness to improve comfort. The angle between foot pocket and the blade is 20° degrees for a perfect power stroke. The Foot pockets include all blade fixing hardware and fixing plates. Having additional foot pocket in either larger or small sizes are great when you need to switch between cold winter thick neoprene socks and thin summer or warm water fin socks.