Marks & Spencer to Vuori size
The short answer
Marks & Spencer XS is Vuori XXS by the two brands' own charts. 5 of 8 Marks & Spencer sizes land on a different label at Vuori.
Both brands publish the body chest each size is cut for, so every row matches a chest, not a letter.
| Marks & Spencer | Marks & Spencer builds it for | Vuori, by chart | Same label | Vuori builds it for | Vuori also prints |
|---|---|---|---|---|---|
| XS | chest 32 to 34 in | XXS | XS | chest 33 to 35 in | not published |
| S | chest 35 to 37 in | XS | S | chest 35 to 37 in | not published |
| M | chest 38 to 40 in | S | M | chest 37 to 39 in | not published |
| L | chest 41 to 43 in | L | L | chest 41 to 43 in | not published |
| XL | chest 44 to 46 in | XL | XL | chest 43 to 46 in | not published |
| XXL | chest 47 to 49 in | XXL | XXL | chest 46 to 49 in | not published |
| XXXL | chest 50 to 52 in | 3XL | 3XL | chest 49 to 52 in | not published |
| 4XL | chest 52 to 54 in | 3XL | not published | chest 49 to 52 in | not published |
What wearers say
Charts describe a garment, not a fit. We do not collect fit reports for this category yet, so this table is the two brands' own claims and nothing more.
Sources
- Marks & Spencer size guide, read on 2026-09-18.
- Vuori size guide, read on 2026-09-18. Vuori on TrueToSize