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The FF-23 is the full foot version of the SF-22 Solla. It is powered by ForcElast technology which offers unparalleled performance and efficiency previously unseen in a traditional blade fin.

In addition to ForcElast technology, the Solla features TUSA’s patented 20° Angled Blade Design (A.B.D.), an optimized three channel crescent shaped blade with reinforced side-rails and vents and a soft anatomic foot pocket.


  • Full foot version of SF-22 Solla.
  • Powered by ForcElast Technology.
  • TUSA patented 20° Angled Blade Design (A.B.D.).
  • Newly designed anatomic foot pocket enhances comfort.
  • Three channel blade with crescent tip maximizes propulsion.
  • Reinforced blade side-rails and vents fine-tune performance.
  • Standard with Anatomic Fin Strap (A.F.S.).

A proprietary thermoplastic elastomer (TPE) compound precisely positioned in an advanced blade and foot pocket structure. ForcElast delivers superior propulsion, efficiency and speed even with moderate power input. ForcElast technology is found in TUSA high performance fins like the SF-22 and FF-23.

Angled Blade Design (A.B.D.)
A standard flat fin inhibits propulsion solely by fault of design. An angle between the heel of the foot and the calf of the leg remains when the leg is extended to kick. This angle causes approximately 10% of the propulsion to be lost. The Angled Blade Design accommodates for this anatomical characteristic and ensures maximum efficiency throughout the kicking cycle.

Solla Full Foot Fins.

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