Nike to Banana Republic size
The short answer
Nike XS is Banana Republic XXS by the two brands' own charts. 2 of 8 Nike 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.
| Nike | Nike builds it for | Banana Republic, by chart | Same label | Banana Republic builds it for | Banana Republic also prints |
|---|---|---|---|---|---|
| XXS | chest 28.1 to 31.5 in, waist 22.5 to 25.5 in, hip 28.5 to 31.5 in | XXS | XXS | chest 32 to 33 in, waist 25 to 26 in, neck 13 to 13.5 in, sleeve 31 in | not published |
| XS | chest 31.5 to 35 in, waist 25.5 to 29 in, hip 31.5 to 35 in | XXS | XS | chest 32 to 33 in, waist 25 to 26 in, neck 13 to 13.5 in, sleeve 31 in | not published |
| S | chest 35 to 37.5 in, waist 29 to 32 in, hip 35 to 37.5 in | S | S | chest 36 to 37 in, waist 29 to 31 in, neck 14 to 14.5 in, sleeve 33 in | not published |
| M | chest 37.5 to 41 in, waist 32 to 35 in, hip 37.5 to 41 in | M | M | chest 38 to 40 in, waist 32 to 33 in, neck 15 to 15.5 in, sleeve 34 in | not published |
| L | chest 41 to 44 in, waist 35 to 38 in, hip 41 to 44 in | L | L | chest 41 to 44 in, waist 34 to 35 in, neck 16 to 16.5 in, sleeve 35 in | not published |
| XL | chest 44 to 48.5 in, waist 38 to 43 in, hip 44 to 47 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 |
| XXL | chest 48.5 to 53.5 in, waist 43 to 47.5 in, hip 47 to 50.5 in | XXL | XXL | chest 49 to 52 in, waist 38 to 39 in, neck 18 to 18.5 in, sleeve 36 in | not published |
| 3XL | chest 53.5 to 58 in, waist 47.5 to 52.5 in, hip 50.5 to 53.5 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 |
| 4XL | chest 58 to 63 in, waist 52.5 to 57 in, hip 53.5 to 58.5 in | not made | not published | not published | 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
- Nike size guide, read on 2026-09-18. Nike on TrueToSize
- Banana Republic size guide, read on 2026-09-18.