Mares Avanti Quattro has set the standard for which all fins are measured. It's the world's first fin with four channels. Channel Thrust technology maximizes the channeling of water and moves a much greater amount of water compared to other fins of the same size. The result is greater thrusting power with the same amount of effort. Its Channel Thrust Technology offers the most versatile choice in all diving conditions. The first four-channel fin in the world the Avanti concept has taken a step forward; its four channels outperform traditional fin efficiency by 20%. Stabilizers improve stability and eliminate ankle-twisting phenomena. Anatomic foot pocket transmits more power to the blade.