On July 1, Asics Japan Corp. launched the DynaFlyte, a new running shoe targeted at ordinary runners. The shoe uses a midsole material that is the most lightweight to date from Asics Corp. (TYO:7936), allowing runners to comfortably up their speed. The sponge material that gives the DynaFlyte its high performance, FlyteFoam, was first used in a midsole in the…