Shires have teamed up with one of the most phenominal trombone players on the planet to create an equally phenominal trombone. Please just turn up your speakers and listen to what is possible (see video below) with this instrument then consider what an instrument like this can do for your playing and then read about the technical stuff and buy one.
In simple terms they have created a half inch bore trombone with a 7.75" bell which has a detachable flare and packs into a really compact case for easy transportation anywhere in the world.