Freediving Stereofins Pro are designed for advanced freedivers. The blade of our Pro fins is very 'alive', durable and almost unbreakable. As material we use hand-laminated multilayer mixture of resins and other chemicals, which are vacuum processed. Order-based processing allows to modify blade stiffness according to your own personal needs. Stereofins Pro have an angle in front of the blade, which helps you to increase the efficiency of your kicking technique. Blade measures (width x lenght): 195x785mm . Total lenght depends on the foot-pocket size. You can choose within 4 stiffnesses & 9 different colors at the moment.