Uniqlo Shirt Size Chart (Men) — and Your mtsya Size
Uniqlo's men's shirt chart (regular, garment chest) runs from 42.5 in at S to 56.7 in at XXXL. To find your mtsya size, compare the garment chest with mtsya's S 42½, M 44, L 46½, XL 48¾, XXL 51½ in. The table below does it for each size.
Uniqlo sells this shirt in a regular fit, and the chart below is a garment (the shirt laid flat, chest doubled) measurement. Find your Uniqlo size, then read across to your mtsya size.
Uniqlo shirt size chart (men)
| Size | Chest (in) | Chest (cm) | Shoulder (in) | Length (in) |
|---|---|---|---|---|
| S | 42.5 | 108 | 17.7 | 28.7 |
| M | 44.9 | 114 | 18.3 | 29.5 |
| L | 47.2 | 120 | 18.9 | 30.3 |
| XL | 50.4 | 128 | 19.7 | 31.5 |
| XXL | 53.5 | 136 | 20.5 | 31.9 |
| XXXL | 56.7 | 144 | 21.3 | 32.3 |
From Uniqlo's published size chart (source: the official site), checked October 2026. Charts differ by product and fit — check the shirt you buy.
Note: Uniqlo publishes body width (half the chest); we doubled it.
Your Uniqlo size in mtsya
We compare the shirt's chest with mtsya's garment chest: S 42½, M 44, L 46½, XL 48¾, XXL 51½ in.
| Uniqlo size | Shirt chest (in) | Your mtsya size |
|---|---|---|
| S | 42.5 | S |
| M | 44.9 | M |
| L | 47.2 | L |
| XL | 50.4 | XXL |
| XXL | 53.5 | XXL (may feel snug) |
| XXXL | 56.7 | XXL (may feel snug) |
How Uniqlo's fit compares with mtsya
Size for size, Uniqlo runs roomier than mtsya: on average its chest is about 1.1 in bigger than the same letter in mtsya. You may want one size up in mtsya.
Every mtsya shirt is one regular-fit pattern in S to XXL, so once you know your size it holds across the range. A size exchange is open for 7 days after delivery.
How to read a shirt size chart
A garment chest is the shirt itself, measured across the chest just below the armholes and doubled. A body chest is you, measured round the fullest part of your chest with the tape level. A comfortable regular-fit shirt is usually about 4 in bigger than the body it fits. Shoulder is seam to seam across the back. If you sit between two sizes, the smaller one looks neater and the larger one is easier to move in.
Not sure?
Our size finder does this for you, including how the shirt feels. Or measure a shirt you already like with our guide on how to measure your shirt size.
Try it in Ash, Geru or The Net, each with the small Matsya fish, the one that guided Manu's boat through the flood, stitched at the left chest.
Shop the shirts
Questions, answered
Does Uniqlo run small?
Uniqlo does not run especially small on this chart. Compare the chest measurement in inches with a shirt you own rather than trusting the label. Charts differ by product.
What size is Uniqlo M in mtsya?
Uniqlo M has a garment chest of 44.9 in, which matches mtsya M. mtsya garment chests are S 42½, M 44, L 46½, XL 48¾ and XXL 51½ in.
Is the Uniqlo size chart body or garment measurement?
This Uniqlo chart is a garment (the shirt laid flat, chest doubled) measurement. Your body chest is usually about 4 in smaller than the shirt's chest.
The fitting room
Read next:Zara shirt size chart ·Allen Solly shirt size chart ·Van Heusen shirt size chart ·Shirt size guide