Trench coat is one of necessary components of the autumn wardrobe.
Did you know it is a next item which is borrowed by us from army wardrobe as well as moto jacket?
"It was originally an item of clothing for Army officers (developed prior to the war but adapted for use in the trenches of the First World War, hence its name) and shows this influence in its styling." Wikipedia
Trench coat Mango here
Blazer H&M similar here
Shoes H&M here