I've been buying from French Connection for years and all of their items have been of great quality and have lasted for a very long time. Their pricing is a bit expensive, considering most of it seems to be factory-made, but the materials they use are beautiful.
I can't comment on their leather jackets but I have two coats from them (I used to have a cropped cotton jacket, but i left it on a bus
... ) and they have lasted through a LOT of use.