Patagonia to Lacoste size
The short answer
Patagonia XXS is Lacoste XS by the two brands' own charts. 6 of 8 Patagonia sizes land on a different label at Lacoste.
Both brands publish the body chest each size is cut for, so every row matches a chest, not a letter.
On 1 sizes the charts land two or more sizes from the same label. Brands do not measure the body the same way, so on those rows treat the chart answer and the same label as the two ends of a range.
| Patagonia | Patagonia builds it for | Lacoste, by chart | Same label | Lacoste builds it for | Lacoste also prints |
|---|---|---|---|---|---|
| XXS | chest 33 in, hip 32 in, sleeve 30 in | XS | not published | chest 34 in, waist 28 in | not published |
| XS | chest 35 in, hip 34 in, sleeve 32 in | S | XS | chest 35 to 37 in, waist 30 to 31 in | not published |
| S | chest 37 in, hip 36 in, sleeve 33 in | S | S | chest 35 to 37 in, waist 30 to 31 in | not published |
| M | chest 40 in, hip 39 in, sleeve 34 in | M | M | chest 38 to 40 in, waist 33 to 35 in | not published |
| L | chest 44 in, hip 43 in, sleeve 35 in | XL | L | chest 44 to 46 in, waist 39 to 42 in | not published |
| XL | chest 47 in, hip 46 in, sleeve 36 in | 2XL or XL | XL | chest 48 to 49 in, waist 44 to 46 in | not published |
| XXL | chest 50 in, hip 49 in, sleeve 37 in | 3XL or 2XL | 2XL | chest 51 in, waist 48 in | not published |
| XXXL | chest 56 in, hip 55 in, sleeve 37.5 in | 1XG or 2XG | 3XL | chest 55 in, waist 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
- Patagonia size guide, read on 2026-09-18.
- Lacoste size guide, read on 2026-09-18.