Smartwool to lululemon leggings size
The short answer
Smartwool L is lululemon 14 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.
| Smartwool | Smartwool builds it for | lululemon, by chart | Same label | lululemon builds it for | lululemon also prints |
|---|---|---|---|---|---|
| S | waist 29 to 31 in, hip 36 to 38 in | 8 or 10 | not published | waist 29 in, hip 39 in | Letter M |
| M | waist 32 to 34 in, hip 39 to 41 in | 12 | not published | waist 33 in, hip 43 in | Letter XL |
| L | waist 35 to 37 in, hip 42 to 44 in | 14 | not published | waist 35 in, hip 45 in | Letter XXL |
| XL | waist 38 to 40 in, hip 45 to 48 in | 16 | not published | waist 38 in, hip 47 in | not published |
| XXL | waist 41 to 44 in, hip 49 to 51 in | 20 | not published | waist 43 in, hip 51 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
- Smartwool size guide, read on 2026-09-18.
- lululemon size guide, read on 2026-09-17. lululemon on TrueToSize