GU to Banana Republic clothing size
The short answer
GU XL is Banana Republic 8 by the two brands' own charts.
Both brands publish the body bust each size is cut for, so every row matches a bust, not a letter or a number.
| GU Japan sizing | GU builds it for | Banana Republic, by chart | Same label | Banana Republic builds it for | Banana Republic also prints |
|---|---|---|---|---|---|
| XS | bust 27.6 to 29.5 in, waist 21.3 to 23.2 in, hip 30.3 to 31.9 in | not made | not published | not published | not published |
| S | bust 29.5 to 31.5 in, waist 23.2 to 24.8 in, hip 31.9 to 33.5 in | 000 | not published | bust 30.5 in, waist 24 in, hip 33.5 in | Letter XXS |
| M | bust 31.5 to 33.5 in, waist 24.8 to 26.4 in, hip 33.5 to 35 in | 0 | not published | bust 32.5 in, waist 26 in, hip 35.5 in | Letter XS |
| L | bust 33.5 to 35.4 in, waist 26.4 to 28 in, hip 35 to 36.6 in | 4 | not published | bust 34.5 in, waist 28 in, hip 37.5 in | Letter S |
| XL | bust 35.4 to 37.8 in, waist 28 to 30.3 in, hip 36.6 to 38.6 in | 8 | not published | bust 36.5 in, waist 30 in, hip 39.5 in | Letter M |
| XXL | bust 37.8 to 40.2 in, waist 30.3 to 32.7 in, hip 38.6 to 40.6 in | 12 | not published | bust 39 in, waist 32.5 in, hip 42 in | Letter L |
| 3XL | bust 40.2 to 43.3 in, waist 32.7 to 35.4 in, hip 40.6 to 43.3 in | 16 or 14 | not published | bust 42.5 in, waist 36 in, hip 45.5 in | Letter XL |
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
- GU Japan sizing size guide, read on 2026-09-25.
- Banana Republic size guide, read on 2026-09-18.