that was exactly the OP on a thread I started I got a gorrrrgeous chocolate brown fleece lined bum-covering waterproof, I'm not usually a fur-round-hood person but this one has, and it's really toasty. I need it for standing on cold footie pitches all weekend cheering ds2 on!! I didn't get mine from here but you can see it - I paid £60
i buy all my dog walking/watching football/rugby coats from lands end. when they are reduced (which is often). not really wearing to work coats, but they are warm/dry/strong and wash easily. ok so not trendy, but trendy doesn't protect you from elements.
sorry I disappeared for a hectic few days of rl... imho they come up the size you'd expect or very slightly smaller, I'm a size 10 and bought a 12, but I'm a wuss I left room for thick jumper or two underneath.