I'm mid 40's, size 18, big boobs and bum and have found a style of dress that flatters my shape. Knee length and flares out a little. My question is, what type of coat do I wear with dresses? I commute to the office on public transport and have to do a fair bit of walking so it needs to be fairly sensible. I just don't know where to start as I used to be a jeans and weatherproof jacket sort of woman