POPFLEX to Smartwool leggings size
The short answer
POPFLEX M is Smartwool S by the two brands' own charts. 5 of 6 POPFLEX sizes land on a different label at Smartwool.
Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.
| POPFLEX | POPFLEX builds it for | Smartwool, by chart | Same label | Smartwool builds it for | Smartwool also prints |
|---|---|---|---|---|---|
| XXS | waist 22 to 24 in, hip 32 to 34 in | not made | not published | not published | not published |
| XS | waist 24 to 26 in, hip 34 to 36 in | not made | not published | not published | not published |
| S | waist 26 to 28 in, hip 36 to 38 in | S | S | waist 29 to 31 in, hip 36 to 38 in | not published |
| M | waist 28 to 31 in, hip 38 to 40 in | S | M | waist 29 to 31 in, hip 36 to 38 in | not published |
| L | waist 31 to 34 in, hip 40 to 43 in | M | L | waist 32 to 34 in, hip 39 to 41 in | not published |
| XL | waist 34 to 38 in, hip 43 to 47 in | L | XL | waist 35 to 37 in, hip 42 to 44 in | not published |
| 1X | waist 38 to 42 in, hip 48 to 52 in | XL | not published | waist 38 to 40 in, hip 45 to 48 in | not published |
| 2X | waist 42 to 46 in, hip 52 to 56 in | XXL | not published | waist 41 to 44 in, hip 49 to 51 in | not published |
| 3X | waist 46 to 50 in, hip 56 to 60 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
- POPFLEX size guide, read on 2026-09-18.
- Smartwool size guide, read on 2026-09-18.