A trench coat is the most famous raincoat in the world — a long, belted coat with wide lapels, shoulder straps, and a storm flap, first made for soldiers in the trenches of World War I. Today it is a wardrobe classic that works for everyone. Below you will find its story, the features that make it special, and five easy ways to wear one.

Classic beige trench coat with belt

The classic trench — belted, double-breasted, timeless — Photo: Bartholomewjuniper, via Wikimedia Commons

Table of Contents

The History of the Trench Coat

Statue of detective Columbo in his famous raincoat

Columbo's rumpled raincoat kept the trench on screen for decades — Photo: Elekes Andor, via Wikimedia Commons

The trench coat was born in the mud of World War I. Two British companies — Burberry and Aquascutum — both claim to have invented it, supplying waterproofed coats to British officers from 1914. Thomas Burberry had patented gabardine, a tightly woven waterproof cotton, back in 1879, and the army version added the belt, epaulettes, and storm flap officers needed.

After the war, Hollywood made it famous. Humphrey Bogart wore one in Casablanca (1942), Audrey Hepburn in Breakfast at Tiffany's (1961), and detectives from Peter Falk's Columbo to Inspector Gadget kept it on screen for decades. By the 1960s it was no longer army gear — it was fashion. For more timeless fashion reads, see our guide to dress silhouettes.

Key Features Explained

Classic trench coat on display showing belt and double-breasted front

A classic trench on display — belt, double-breasted front, wide lapels — Photo: Bdcousineau, via Wikimedia Commons

Every classic trench has the same DNA. The double-breasted front (two rows of buttons) overlaps extra fabric against wind and rain. The storm flap across the right shoulder sheds water away from the neck opening. Epaulettes (shoulder straps) once held military rank insignia; now they are pure style.

The belted waist with a D-ring buckle cinches the shape — the D-rings originally held grenades and map cases. The wide notched lapels pop up against rain, the back vent lets you stride, and the check lining (Burberry's famous pattern, registered in the 1920s) adds warmth. Cuff straps with buckles keep sleeves snug against wind.

How to Wear a Trench Coat: 5 Outfit Ideas

1. The Classic: Jeans + White Tee + Sneakers

Woman wearing a trench coat in a casual city outfit

The everyday formula — a trench over casual clothes — Photo: Mabalu, via Wikimedia Commons

The simplest outfit is the best. A beige trench over dark jeans, a plain white tee, and clean white sneakers works for coffee runs, school pickup, and casual Fridays. Roll the sleeves once to show the lining.

Belt it loosely at the back for a relaxed drape, or tie it in front for shape. This look works in spring and fall — add a light sweater underneath when it is chilly.

2. Office Sharp: Tailored Trousers + Loafers

Man in a trench coat over smart clothes

Over smart clothes — the trench means business — Photo: Kürschner, via Wikimedia Commons

A trench over a suit or tailored trousers is the sharpest rain-day outfit there is. Choose a coat that hits just below the knee — long enough to cover a blazer, short enough to walk easily. Dark navy or camel both work.

Keep the belt tied in front for a clean line. Leather loafers or oxfords finish it. This is the outfit for interviews, client meetings, and rainy commutes.

3. Weekend Casual: Hoodie + Leggings + Boots

Yes, you can wear a hoodie under a trench — it is one of the best casual combos. The structured coat elevates the soft hoodie instantly. Black leggings and ankle boots keep it streamlined.

Leave the trench open and let the hoodie peek out at the neck. This works from fall through early spring — the coat blocks wind while the hoodie insulates. Our ankle boot guide has boot pairings.

4. Evening Out: Black Dress + Heels

A trench over a black dress is the easiest evening upgrade. The coat adds mystery at arrival and practicality if it rains on the way home. Belt it tight for a defined waist.

Heels or heeled boots, a small clutch, and simple jewelry. Choose a trench in black or deep navy for evening — beige works too, but darker reads dressier after dark.

5. Summer Rain: Shorts + Sandals

Woman in a lightweight trench coat on a rainy day in the city

A light trench over everyday clothes — rain-ready — Photo: Mabalu, via Wikimedia Commons

Do not pack the trench away in summer — a lightweight unlined one is perfect for sudden showers. Wear it open over shorts and a tank, with sandals or canvas sneakers.

Look for "summer weight" or unlined trenches in cotton poplin — they pack small and dry fast. This is the commuter's secret weapon from May to September.

How to Choose the Right One

Man modeling a knee-length trench coat

Knee-length is the most versatile cut — Photo: Günther Krampf, via Wikimedia Commons

Fit matters most. The shoulder seams should sit exactly on your shoulder bones — too wide looks sloppy, too narrow restricts. You should be able to button it over a sweater without pulling. Sleeves should end at the wrist bone.

Length: knee-length is the most versatile. Petite frames do better with a shorter cut (mid-thigh); tall frames can carry full-length. For color, beige/khaki is the icon, but navy, black, and olive are all excellent. Check the fabric — cotton gabardine is the original and still the best.

Care Tips

Spot clean first. Most marks come out with a damp cloth and mild soap. Full washing wears the water-resistant finish faster.

Reproof yearly. Spray-on DWR (durable water repellent) treatments restore the rain-shedding finish. Wash the coat first, then spray evenly and air dry.

Hang properly. Always use a wide wooden hanger — wire hangers stretch the shoulders. Button it up on the hanger to keep the shape.

Store breathable. Never store in plastic dry-cleaner bags long-term; they trap moisture. A cotton garment bag is ideal.

FAQs

What is a trench coat, exactly?

A long, belted, double-breasted raincoat with wide lapels, shoulder straps (epaulettes), and a storm flap — originally made for WWI officers, now a fashion classic.

Are trench coats still in style?

Yes — the trench has been in style for over 100 years. It never truly leaves; designers just reinterpret the length, color, and details each decade.

Can you wear a trench coat in winter?

Yes, with layers — a sweater underneath and a scarf, plus the belt cinched. For deep winter, look for trenches with a removable quilted liner.

What is the difference between a trench coat and a raincoat?

All trench coats are raincoats, but not all raincoats are trenches. The trench specifically means the belted, double-breasted military-inspired design with epaulettes and storm flap.

Should a trench coat be tight or loose?

Skim, not squeeze. It should button over a sweater without pulling, with shoulder seams on your shoulder bones. The belt creates the shape — the coat itself should drape.

How long should a trench coat be?

Knee-length suits most people and most occasions. Mid-thigh flatters petite frames; full-length (below the knee) suits taller frames and formal wear.

Final Thoughts

The trench coat earned its fame in the trenches and kept it on the red carpet. It is one of the few garments that works as well over a hoodie as over a suit. Find your fit, learn the belt tie, and you have a coat for the next twenty years.

Vintage-style still life with a trench coat

1930s reporter style — the trench's golden age — Photo: VSchagow, via Wikimedia Commons

Group of people wearing trench coats

The trench brigade — it suits everyone — Photo: Frozeficent, via Wikimedia Commons

Vintage photo of a man in a trench coat reading a newspaper

A vintage trench coat moment — Photo: Günther Krampf, via Wikimedia Commons

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