Buying
Moncler sizes explained: numbers to UK sizes
By the Encore Luxe specialists · Reviewed by Encore Luxe Authentication · Updated November 2026
Moncler labels its outerwear with numbers rather than letters, and the numbers mean different things in men's and women's garments. That causes a lot of confusion, particularly when buying pre-owned, where you can't simply try on another size. This guide explains the system and how to check the fit of a pre-loved Moncler.
The number system
Moncler's outerwear sizes run from 00 upwards. As a general guide, based on Moncler's published size charts and those of major retailers:
| Moncler size | Approximate letter size |
|---|---|
| 00 | XXS |
| 0 | XS |
| 1 | S |
| 2 | M |
| 3 | L |
| 4 | XL |
| 5 | XXL |
Men's sizes continue above 5 for larger fits. Always treat letter equivalents as approximate: styles are cut differently.
Men's and women's sizes are not the same
The same number is not the same size across men's and women's garments. A women's size 1 corresponds to a smaller Italian size than a men's size 1. If you are buying a jacket from the other side of the range, compare measurements rather than numbers.
Style matters as much as size
Short, fitted jackets such as the Maya sit close to the body, while longer coats and relaxed styles are cut more generously. Laqué shells have little stretch. Body warmers and gilets fit closer than jackets because they are worn over fewer layers.
How to check a pre-owned fit
- Lay a jacket you already own flat and measure across the chest from armpit to armpit, across the shoulders, the sleeve length and the back length.
- Compare those measurements with the pre-owned jacket. Ask the seller for them if they are not listed.
- Check the size label inside matches the listing; mismatched labels are a warning sign. See how to tell if a Moncler jacket is real.
Body warmers, lightweight jackets and coats
Body warmers and gilets are usually worn over a jumper or shirt and fit close to the body; choose your usual size, or one up if you plan to layer heavily. Lightweight jackets have less down and less bulk, so they generally fit true to size. Long coats are cut with room for layers underneath and may fit more generously. Hooded styles add little to fit but do change the look at the neck.
Children's sizes
Moncler's children's sizes are labelled by age rather than by the adult number system. If you are buying a children's piece, check the age label and the measurements.
Ask us
If you are unsure which size suits you, contact our team before buying. We can give you the flat measurements of any piece we hold.
Measuring yourself
Measure your chest at the fullest point and your shoulders across the back from seam to seam, wearing the layers you would usually wear under the jacket. Compare these with flat measurements: double the pit-to-pit width to estimate the jacket's chest, and allow a few centimetres of room for movement over layers. Sleeve length is measured from the shoulder seam to the cuff.
Related reading
See our down jacket care guide and how to buy pre-owned luxury safely. Browse pre-loved clothing, including the Moncler Maya in size 4 and the navy body warmer in size 1.
Questions we’re often asked
- What size is Moncler 1?
Approximately a small. But a women's size 1 is smaller than a men's size 1, so compare measurements.
- What size is Moncler 4?
Approximately an extra large.
- Do Moncler jackets run small?
Fitted styles such as the Maya sit close to the body. Compare flat measurements with a jacket you own.
- Should I size up in Moncler?
Many buyers size up to wear thick layers underneath, but it depends on the piece and your build. Compare flat measurements.