Lululemon to Nike clothing size
The short answer
lululemon XXXS is Nike XXS by the two brands' own charts. 6 of 9 lululemon sizes land on a different label at Nike.
Both brands publish the body bust each size is cut for, so every row matches a bust, not a letter or a number.
| lululemon | lululemon builds it for | Nike, by chart | Same label | Nike builds it for | Nike also prints |
|---|---|---|---|---|---|
| XXXS | bust 28.5 in | XXS | not published | bust 27.5 to 29.5 in, waist 21.3 to 23.5 in, hip 30.5 to 33 in | not published |
| XXS | bust 30 in | XS | XXS | bust 29.5 to 32.5 in, waist 23.5 to 26 in, hip 33 to 35.5 in | not published |
| XS | bust 31 to 32 in | XS | XS | bust 29.5 to 32.5 in, waist 23.5 to 26 in, hip 33 to 35.5 in | not published |
| S | bust 33 to 34 in | S | S | bust 32.5 to 35.5 in, waist 26 to 29 in, hip 35.5 to 38.5 in | not published |
| M | bust 35 to 36 in | M | M | bust 35.5 to 38 in, waist 29 to 31.5 in, hip 38.5 to 41 in | not published |
| L | bust 37 to 38.5 in | M | L | bust 35.5 to 38 in, waist 29 to 31.5 in, hip 38.5 to 41 in | not published |
| XL | bust 40 to 42 in | L | XL | bust 38 to 41 in, waist 31.5 to 34.5 in, hip 41 to 44 in | not published |
| 1X | bust 45 to 47 in | XXL | not published | bust 44.5 to 48.5 in, waist 38.5 to 42.5 in, hip 47 to 50 in | not published |
| 2X | bust 49 to 51 in | XXL | not published | bust 44.5 to 48.5 in, waist 38.5 to 42.5 in, hip 47 to 50 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
- lululemon size guide, read on 2026-09-18. lululemon on TrueToSize
- Nike size guide, read on 2026-09-18. Nike on TrueToSize