Lululemon to Year of Ours leggings size
The short answer
lululemon 4 is Year of Ours Extra Small by the two brands' own charts.
Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.
| lululemon | lululemon builds it for | Year of Ours, by chart | Same label | Year of Ours builds it for | Year of Ours also prints |
|---|---|---|---|---|---|
| 0 | waist 21 in, hip 32 in | not made | not published | not published | not published |
| 2 | waist 23 in, hip 33 in | not made | not published | not published | not published |
| 4 | waist 25 in, hip 35 in | Extra Small | not published | waist 25 to 26.5 in, hip 35 to 37 in | US numeric 2-4 |
| 6 | waist 27 in, hip 37 in | Small | Small | waist 27 to 28 in, hip 38 to 40 in | US numeric 4-6 |
| 8 | waist 29 in, hip 39 in | Medium | Medium | waist 29 to 32 in, hip 41 to 43 in | US numeric 6-8 |
| 10 | waist 31 in, hip 41 in | Medium | Large | waist 29 to 32 in, hip 41 to 43 in | US numeric 6-8 |
| 12 | waist 33 in, hip 43 in | Large | not published | waist 33 to 35 in, hip 44 to 46 in | US numeric 10-12 |
| 14 | waist 35 in, hip 45 in | Large | not published | waist 33 to 35 in, hip 44 to 46 in | US numeric 10-12 |
| 16 | waist 38 in, hip 47 in | Extra Large | not published | waist 36 to 38 in, hip 47 to 49 in | US numeric 14-16 |
| 18 | waist 41 in, hip 49 in | 2X | not published | waist 39 to 41 in, hip 50 to 52 in | US numeric 18-20 |
| 20 | waist 43 in, hip 51 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
- lululemon size guide, read on 2026-09-17. lululemon on TrueToSize
- Year of Ours size guide, read on 2026-09-18.