These modular single blade fins can be easily replaced depending on performance and budget you require. 

Freediving fins are designed for maximum efficiency and these blades deliver. They offer excellent propulsion without tiring the diver through the perfect combination of design and materials. The foot pocket / blade angle is set at 29 degrees and both the plastic and carbon blades are extremely light and thin in comparison to like counterparts. 

Carbon fibre fins offer optimal performance since the materials offer higher efficiency in the transfer of energy, therefore reducing respiration and metabolites.