Athleta to Buffbunny leggings size
The short answer
Athleta XXS is Buffbunny XXS/00 by the two brands' own charts. 8 of 8 Athleta sizes land on a different label at Buffbunny.
Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.
| Athleta | Athleta builds it for | Buffbunny, by chart | Same label | Buffbunny builds it for | Buffbunny also prints |
|---|---|---|---|---|---|
| XXS | waist 24.3 in, hip 34 in | XXS/00 | XXS/00 | waist 24 to 25 in, hip 33 to 35 in | not published |
| XS | waist 25.3 to 26.3 in, hip 35 to 36 in | XS/0-2 | XS/0-2 | waist 25 to 27 in, hip 36 to 37 in | not published |
| S | waist 27.3 to 28.3 in, hip 37 to 38 in | S/4-6 | S/4-6 | waist 27 to 28 in, hip 38 to 39 in | not published |
| M | waist 29.3 to 30.3 in, hip 39 to 40 in | M/6-8 | M/6-8 | waist 29 to 31 in, hip 39 to 41 in | not published |
| L | waist 31.8 to 33.3 in, hip 41.5 to 43 in | L/10-12 | L/10-12 | waist 32 to 34 in, hip 42 to 44 in | not published |
| XL | waist 34.3 in, hip 44.5 in | L/10-12 | XL/14-16 | waist 32 to 34 in, hip 42 to 44 in | not published |
| 1X | waist 38 to 40 in, hip 47.3 to 49.3 in | XXL/16-18 | not published | waist 37 to 39 in, hip 47 to 49 in | not published |
| 2X | waist 42 to 44.5 in, hip 51.3 to 53.8 in | XXXL/18-20 | not published | waist 39 to 41 in, hip 50 to 52 in | not published |
| 3X | waist 47 to 49.5 in, hip 56.3 to 58.8 in | not made | not published | not published | not published |
What wearers say
Charts describe a garment. People who own both brands describe a fit, and their answer ranks above this table once five of them stand behind it. Pick your size in the converter to see whether there are enough yet.
Sources
- Athleta size guide, read on 2026-09-17. Athleta on TrueToSize
- Buffbunny size guide, read on 2026-09-18.