Abercrombie & Fitch to Gymshark size
The short answer
Abercrombie & Fitch S is Gymshark XS by the two brands' own charts. 5 of 6 Abercrombie & Fitch sizes land on a different label at Gymshark.
Both brands publish the body chest each size is cut for, so every row matches a chest, not a letter.
| Abercrombie & Fitch | Abercrombie & Fitch builds it for | Gymshark, by chart | Same label | Gymshark builds it for | Gymshark also prints |
|---|---|---|---|---|---|
| XXS | chest 28.4 to 31.5 in, sleeve 31.1 in | not made | not published | not published | not published |
| XS | chest 31.5 to 34.7 in, sleeve 31.9 in | not made | XS | not published | not published |
| S | chest 34.7 to 37.4 in, sleeve 33.1 in | XS | S | chest 37 in, waist 29.5 in | not published |
| M | chest 37.4 to 40.6 in, sleeve 33.9 in | S | M | chest 39 in, waist 31.5 in | not published |
| L | chest 40.6 to 43.3 in, sleeve 35 in | M or L | L | chest 41 in, waist 33.5 in | not published |
| XL | chest 43.3 to 46.5 in, sleeve 35.8 in | XL | XL | chest 45 in, waist 37.5 in | not published |
| XXL | chest 46.5 to 49.6 in, sleeve 36.6 in | XXXL or XXL | XXL | chest 49 in, waist 41.5 in | not published |
| 3XL | chest 49.6 to 52.4 in, sleeve 36.6 in | XXXL | XXXL | chest 49 in, waist 41.5 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
- Abercrombie & Fitch size guide, read on 2026-09-18.
- Gymshark size guide, read on 2026-09-18. Gymshark on TrueToSize