Kite photos Kitesurfing - Interview - Flysurfer BOOST designer Vojta 11. APR '16 15 (0) +1 -1 (0) In this video Andi Hanrieder from the Flysurfer and Flyboards Research and Development Team talks about the new BOOST.., the second L.E.I. product line from Flysurfer Kiteboarding. Experience quick turning speed, explosive lift, incredible hang-time, amazing upwind ability and forward speed. In a short designer video interview he explains you quickly what the most important features and innovations are on this unique high performance l.e.i kite.