If you are going to buy one jacket this fall it needs to be the Barbour Beadnell Waxed Cotton jacket. This is a quintessential classic piece that will last you a lifetime, and is so easy to wear. You literally can throw it on over any causal outfit and be on your way. There are liners and hoods to make it more versatile as well if you need them.
The Beadnell comes in Black, Navy and Sage which is my personal favorite and the one I have!