The Mares Superchannel Full Foot Dive Fins use the latest Superchannel technology, allowing for optimal power and maximum kick efficiency. The Superchannel Fins employ advanced thrust technology through thermoplastic rubber/tecralene materials, and upper and lower stabilizers. The Channel Thrust technology maximizes the thrust, and moves a much greater amount of water compared to other fins of the same size. The result is greater power with the same amount of effort.
More details here: https://www.diversdirect.com/p/mares-superchannel-full-foot-scuba-fins/35276