Thanks everyone, I found this (ever so slightly stuffy) site that looks interesting and found this delineation....its from The Gentleman's Gazette....
In the past year, we have written about a number of
articles about topcoat & overcoat styles. With so many different types of outerwear under discussion, I thought it would be helpful to define a few basic coat terms.
Ulster Overcoats
Overcoat
An
overcoat is simply a heavy coat that is worn over a suit or a jacket. It usually reaches between slightly above the knee to all the way down to the ankle. The first overcoat was probably the
Chesterfield, and it was invented in the mid 19
th century. The standard fabrics back then were much heavier than their modern counterparts, and they usually weighed about 30 oz. per yard (about 900 grams per meter) or even more.
Before the overcoat was invented, men wore body coats.
Body Coat
Morning Coats - Body Coats
A body coat was cut very closely to the body, hence the name. A body coat is a frock coat, a tailcoat (white tie) or a morning coat, and regardless of the type, they were worn both inside and out, without adding any additional layers for outdoor wear. The development of the overcoat brought about the modern concept of wearing another coat over one’s indoor clothing.
Frock Coats in Versailles 1919
Greatcoat
A
Greatcoat is generally a substantial, bulky overcoat such as an
Ulster or a
British Warm.
It is not fitted around the waist and the heavy fabric hangs more loosely from the shoulders. Often, greatcoats have a military derivation.
Greatcoat of the British Army
It may help to keep in mind that all greatcoats are overcoats, but not all overcoats are greatcoats.
Topcoat
W.W.Chan-Bespoke-Topcoat
Traditionally a
topcoat is an overcoat with a fabric that weighs 18 oz. per yard (500 g per meter) or less. Often they are worn about knee high. During its original time, this was considered to be lightweight whereas most people today would consider it to be heavy. Fabrics, of course, have lightened as fabric technology, customer preferences, and modern heating have developed.
Summary
- An OVERCOAT is a long, sleeved garment worn on top of something else.
- A TOPCOAT is a lightweight overcoat.
- A GREATCOAT is a heavy, bulky overcoat.
