Though the terms are often incorrectly interchanged or confused, topcoats and overcoats basically serve the same purpose: to provide an elegant outer layer of warmth for the urbane gentleman when he’s wearing a suit or jacket (or not). The two coats are similar in many ways, especially from the waist up where they have a design and structure that resembles a jacket or blazer. Their shell is usually a fine wool, cashmere or a blend thereof. Where they differ mostly is in the length. Overcoats extend below the knee, and topcoats hit above the knee.

My preference has always been the topcoat. It’s an essential piece in my fall/winter rotation. While the overcoat technically provides more warmth since it literally covers more of the body, I find the topcoat to be lighter, less cumbersome and better for travel. It also manages to provide all the warmth where it really counts. And the shorter length has a slightly less formal or aristocratic look to me, which makes a topcoat a really versatile garment that can appropriately complement dressier suit and tie situations and nicely punch up a t-shirt and a pair of jeans.