The Fly is a development between Terry and Selle Italia that combines titanium rails with an internal suspension bridge that's designed to absorb shock, along with a multi-density padded seat to provide all-day comfort.
Despite the more minimal profile, it did just that, with the long deep cutout removing pressure completely and keeping things remarkably cool.
The rear was very supportive, and the slightly textured leather seat gives grip when you need it but also allows you to move around freely.
In fact, we reckon that you can't beat the nicer riding feel provided by leather (which also absorbs sweat, so helps reduce chafing and general dampness) and would recommend that anyone with long term comfort issues look at trying one of these for size.