What is a trench coat?
Trench coat A trench coat (or trench coat) is a double-breasted, belted raincoat, historically designed to protect against rain and wind, made of water-repellent fabric. Classic versions are made of gabardine, treated cotton, or blended materials.

English word trench coat Literally translated as "trench coat," the style was developed by Thomas Burberry in 1901 as an alternative to the heavy woolen greatcoats worn by British soldiers during World War I.
The trench coat's key feature is its preservation of its historical military cut. Every detail of the coat originally had a strictly practical function, and today it is a recognizable element of classic style.
Distinctive features
The traditional trench coat is double-breasted and features two rows of buttons. The classic version uses exactly ten buttons, and the garment itself is made of heavyweight gabardine in camel, sand, or khaki.

Weather protection features include a gun flap on the chest and a cape on the back. These elements help shed raindrops without penetrating the garment, while a high collar with a hook-and-eye closure provides additional wind protection.
The military heritage is reflected in the distinctive cut details. Epaulettes, originally intended for attaching insignia, are located on the shoulders. The cuffs feature straps with buckles for securing the sleeves, and the waistband features D-rings.
What to combine with
For a smart casual look, pair a classic beige trench coat with straight-leg blue jeans and a basic white T-shirt. Complete the look with leather loafers or minimalist white sneakers.

In a business wardrobe, a trench coat is worn over a tailored pantsuit or pencil skirt with a silk blouse. For footwear, such ensembles are complemented by pumps or ankle boots with a sturdy heel.

For an evening out, a trench coat is draped over a slip dress. The contrast of thick gabardine and flowing silk is accented with statement embellishments.
The trench coat can be worn unbuttoned, with the belt tied in a knot at the back for a subtle fit. Another popular option is to wrap the hem tightly and tie the belt loosely at the front, without a buckle.