6% Polyester, 12% PU foam with active carbon, 57% EVA, 15% Gel, 10% TPR FZ FORZA Leander V3 is the third version of our bestselling badminton shoe Leander. This version is lighter s and more breathable than previous versions,. Leander V3 has FZorb technology molded into the heel-area, which give players absorption and high comfort.