This instructional video demonstrates the TUSA Z3 X-Pert Zoom Adjustable Strap Fins. The Tusa Z3 X-Pert Zoom Fins features a three material design for increased performance compared to standard split fins, reinforced side rails for increased stability, and an angled design for maximum kick efficiency. These fins also feature a 27 degree angled bend to accomodate for the natural bend in your legs. The fins feature a quick release, quick-adjust buckle that makes adjusting a snap. Spring straps are also available as an upgrade.