Year of Ours to lululemon leggings size
The short answer
Year of Ours Extra Small is lululemon 4 or 6 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.
| Year of Ours | Year of Ours builds it for | lululemon, by chart | Same label | lululemon builds it for | lululemon also prints |
|---|---|---|---|---|---|
| Extra Small | waist 25 to 26.5 in, hip 35 to 37 in | 4 or 6 | not published | waist 25 in, hip 35 in | Letter XS |
| Small | waist 27 to 28 in, hip 38 to 40 in | 6 | not published | waist 27 in, hip 37 in | Letter S |
| Medium | waist 29 to 32 in, hip 41 to 43 in | 10 | not published | waist 31 in, hip 41 in | Letter L |
| Large | waist 33 to 35 in, hip 44 to 46 in | 12 or 14 | not published | waist 33 in, hip 43 in | Letter XL |
| Extra Large | waist 36 to 38 in, hip 47 to 49 in | 16 | not published | waist 38 in, hip 47 in | not published |
| 2X | waist 39 to 41 in, hip 50 to 52 in | 18 | not published | waist 41 in, hip 49 in | 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
- Year of Ours size guide, read on 2026-09-18.
- lululemon size guide, read on 2026-09-17. lululemon on TrueToSize