Lululemon to J.Crew clothing size
The short answer
lululemon XS is J.Crew 000 or 00 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.
On 3 sizes the charts land two or more sizes from the same label. Brands do not measure the body the same way, so on those rows treat the chart answer and the same label as the two ends of a range.
| lululemon | lululemon builds it for | J.Crew, by chart | Same label | J.Crew builds it for | J.Crew also prints |
|---|---|---|---|---|---|
| XXXS | bust 28.5 in | not made | 000 | not published | not published |
| XXS | bust 30 in | not made | 2 | not published | not published |
| XS | bust 31 to 32 in | 000 or 00 | 4 | bust 31 in, waist 23 in | Letter XXXS · UK 0 · DE 24 · FR 28 · IT 32 · AU 0 · JP 1 |
| S | bust 33 to 34 in | 0 or 2 | 6 | bust 33 in, waist 25 in | Letter XS · UK 4 · DE 28 · FR 32 · IT 36 · AU 4 · JP 3 |
| M | bust 35 to 36 in | 4 or 6 | 8 | bust 35 in, waist 27 in | Letter S · UK 8 · DE 34 · FR 36 · IT 40 · AU 8 · JP 7 |
| L | bust 37 to 38.5 in | 10 | 10 | bust 38 in, waist 30 in | Letter M · UK 14 · DE 38 · FR 42 · IT 46 · AU 14 · JP 13 |
| XL | bust 40 to 42 in | 14 | not published | bust 41 in, waist 33 in | Letter L · UK 18 · DE 42 · FR 46 · IT 50 · AU 18 · JP 17 |
| 1X | bust 45 to 47 in | 18 | not published | bust 46 in, waist 38 in | Letter XXL / 1X · UK 22 · DE 46 · FR 50 · IT 54 · AU 22 · JP 21 |
| 2X | bust 49 to 51 in | 22 or 20 | not published | bust 51 in, waist 43 in | Letter 3X |
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
- J.Crew size guide, read on 2026-09-18.