Trench Coat Size Chart (Chest, Waist & Length)
A trench coat is a structured layer worn over clothing, so it's sized by chest with room underneath, and the belt lets you shape the waist. Shoulder fit and length are what give a trench its classic silhouette.
Trench Coat Size Chart (to-fit body, inches)
| Size | Chest | Waist | Length |
|---|---|---|---|
| XS (0–2) | 33–35 | 26–28 | 40" |
| S (4–6) | 36–38 | 29–31 | 41" |
| M (8–10) | 39–41 | 32–34 | 42" |
| L (12–14) | 42–44 | 35–37 | 43" |
| XL (16–18) | 45–47 | 38–40 | 44" |
Notes
Size to layer, shape with the belt. A trench is worn over jackets and knitwear, so pick a chest size with room underneath, then use the belt to define the waist. Don't size down to fit the waist — that's what the belt is for, and a tight chest ruins the drape.
The shoulder must sit right. Because a trench is structured, a shoulder seam that falls off the shoulder can't be fixed with a belt. Get the shoulder and chest right first; those are the hard-to-alter areas.
Length is a style choice. Classic trenches hit below the knee; modern cuts can be shorter. The length column is measured from the shoulder — decide whether you want knee-length coverage or a cropped, contemporary look.
FAQs
How should a trench coat fit?
Comfortably over your typical layers through the chest and shoulders, with the belt cinching the waist to your preference. The shoulder seam should sit at your shoulder edge, and the length should fall where you want — classically below the knee.
Do trench coats run large?
Because they're designed for layering, trenches can feel roomy over just a shirt — that's intentional. Size for the layers you'll actually wear underneath rather than sizing down to the bare-body measurement.
How do I measure for a trench coat?
Measure your chest and waist over a light layer and your shoulder width, then match the chest to the chart. Use the belt to adjust the waist, and check the length lands where you want it to fall.
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