2XU to Smartwool leggings size
The short answer
2XU M is Smartwool S by the two brands' own charts. 3 of 4 2XU 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.
On 2 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.
| 2XU Flex & Fluid Tights | 2XU builds it for | Smartwool, by chart | Same label | Smartwool builds it for | Smartwool also prints |
|---|---|---|---|---|---|
| XXS | waist 23 to 24.5 in, hip 33 to 34.5 in | not made | not published | not published | not published |
| XS | waist 25 to 26 in, hip 35 to 36.5 in | not made | not published | not published | not published |
| S | waist 26.5 to 28 in, hip 37 to 38.5 in | S | S | waist 29 to 31 in, hip 36 to 38 in | not published |
| M | waist 28.5 to 30 in, hip 39 to 40.5 in | S | M | waist 29 to 31 in, hip 36 to 38 in | not published |
| L | waist 30.5 to 32 in, hip 41 to 42.5 in | S | L | waist 29 to 31 in, hip 36 to 38 in | not published |
| XL | waist 32.5 to 34 in, hip 43 to 44.5 in | M | XL | waist 32 to 34 in, hip 39 to 41 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
- 2XU Flex & Fluid Tights size guide, read on 2026-09-18.
- Smartwool size guide, read on 2026-09-18.