Can someone explain the half-belt style jacket to me. It slimming and all, but what's it designed for? An A2 or a Perfecto, I understand where they're coming from; but with a half-belt, I'm totally clueless. Grouse hunting? The reason I'm asking is that I'm thinking about a colder weather bike jacket and that extra leather material down the back looks invitingly warm (and you still have the side belts for adjustability). I'll probably wind up going with a custom Highwayman type from Johnson Leather because I like the tight seal at the waist, and definitely am going to add an extra leather tail down the back, like on a highway patrol jacket. Of course, if I did somehow go the half-belt direction, I think it would be way too long in front for my upright riding position and would want to get a two way zipper, like on the longer cafe racers. Does any of this compute?