J.Crew to lululemon clothing size
The short answer
J.Crew 000 is lululemon XS 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.
| J.Crew | J.Crew builds it for | lululemon, by chart | Same label | lululemon builds it for | lululemon also prints |
|---|---|---|---|---|---|
| 000 | bust 31 in, waist 23 in | XS | XXXS | bust 31 to 32 in | US 4 |
| 000 | bust 31 in, waist 23 in | XS | XXXS | bust 31 to 32 in | US 4 |
| 000 | bust 31 in, waist 23 in | XS | XXXS | bust 31 to 32 in | US 4 |
| 2 | bust 34 in, waist 26 in | S | XS | bust 33 to 34 in | US 6 |
| 4 | bust 35 in, waist 27 in | M | S | bust 35 to 36 in | US 8 |
| 6 | bust 36 in, waist 28 in | M | S | bust 35 to 36 in | US 8 |
| 8 | bust 37 in, waist 29 in | L | M | bust 37 to 38.5 in | US 10 |
| 10 | bust 38 in, waist 30 in | L | M | bust 37 to 38.5 in | US 10 |
| 12 | bust 39.5 in, waist 31.5 in | XL or L | L | bust 40 to 42 in | US 12-14 |
| 14 | bust 41 in, waist 33 in | XL | L | bust 40 to 42 in | US 12-14 |
| 16 | bust 43.5 in, waist 35.5 in | XL or 1X | XL | bust 40 to 42 in | US 12-14 |
| 18 | bust 46 in, waist 38 in | 1X | not published | bust 45 to 47 in | US 16-18 |
| 20 | bust 48.5 in, waist 40.5 in | 2X or 1X | 2X | bust 49 to 51 in | US 20-22 |
| 22 | bust 51 in, waist 43 in | 2X | not published | bust 49 to 51 in | US 20-22 |
| 24 | bust 53.5 in, waist 45.5 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
- J.Crew size guide, read on 2026-09-18.
- lululemon size guide, read on 2026-09-18. lululemon on TrueToSize