American Eagle to Banana Republic size
The short answer
American Eagle S is Banana Republic M by the two brands' own charts. 6 of 10 American Eagle sizes land on a different label at Banana Republic.
Both brands publish the body chest each size is cut for, so every row matches a chest, not a letter.
| American Eagle | American Eagle builds it for | Banana Republic, by chart | Same label | Banana Republic builds it for | Banana Republic also prints |
|---|---|---|---|---|---|
| XS | chest 35 to 36 in, neck 13.5 to 14 in, sleeve 31.5 in | XS or S | XS | chest 34 to 35 in, waist 27 to 28 in, neck 13 to 13.5 in, sleeve 32 in | not published |
| S | chest 37 to 39 in, neck 14.5 to 15 in, sleeve 32.5 in | M | S | chest 38 to 40 in, waist 32 to 33 in, neck 15 to 15.5 in, sleeve 34 in | not published |
| M | chest 40 to 42 in, neck 15 to 15.5 in, sleeve 33.5 in | L | M | chest 41 to 44 in, waist 34 to 35 in, neck 16 to 16.5 in, sleeve 35 in | not published |
| M TALL | chest 40 to 42 in, neck 15 to 15.5 in, sleeve 34.5 in | L | not published | chest 41 to 44 in, waist 34 to 35 in, neck 16 to 16.5 in, sleeve 35 in | not published |
| L | chest 43 to 45 in, neck 15.5 to 16 in, sleeve 34.5 in | L | L | chest 41 to 44 in, waist 34 to 35 in, neck 16 to 16.5 in, sleeve 35 in | not published |
| L TALL | chest 43 to 45 in, neck 15.5 to 16 in, sleeve 35.5 in | L | not published | chest 41 to 44 in, waist 34 to 35 in, neck 16 to 16.5 in, sleeve 35 in | not published |
| XL | chest 46 to 48 in, neck 16.5 to 17 in, sleeve 35.5 in | XL | XL | chest 45 to 48 in, waist 36 to 37 in, neck 17 to 17.5 in, sleeve 35.5 in | not published |
| XL TALL | chest 46 to 48 in, neck 16.5 to 17 in, sleeve 36.5 in | XL | not published | chest 45 to 48 in, waist 36 to 37 in, neck 17 to 17.5 in, sleeve 35.5 in | not published |
| XXL | chest 49 to 51 in, neck 17 to 18 in, sleeve 36.5 in | XXL | XXL | chest 49 to 52 in, waist 38 to 39 in, neck 18 to 18.5 in, sleeve 36 in | not published |
| XXXL | chest 52 to 54 in, neck 18 to 19 in, sleeve 37 in | XXL | not published | chest 49 to 52 in, waist 38 to 39 in, neck 18 to 18.5 in, sleeve 36 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
- American Eagle size guide, read on 2026-09-18. American Eagle on TrueToSize
- Banana Republic size guide, read on 2026-09-18.