Under Armour to Girlfriend Collective leggings size
The short answer
Under Armour XXS is Girlfriend Collective XS by the two brands' own charts. 9 of 11 Under Armour sizes land on a different label at Girlfriend Collective.
Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.
| Under Armour | Under Armour builds it for | Girlfriend Collective, by chart | Same label | Girlfriend Collective builds it for | Girlfriend Collective also prints |
|---|---|---|---|---|---|
| XXS | waist 24.5 to 25.5 in, hip 33 to 34.5 in | XS | XXS | waist 24 to 26 in, hip 34 to 36 in | not published |
| XS | waist 25.5 to 27 in, hip 34.5 to 36 in | S | XS | waist 26 to 28 in, hip 36 to 39 in | not published |
| SM | waist 27 to 29 in, hip 36 to 38 in | S | not published | waist 26 to 28 in, hip 36 to 39 in | not published |
| MD | waist 29 to 31 in, hip 38 to 40 in | M | not published | waist 28 to 30.5 in, hip 39 to 41.5 in | not published |
| LG | waist 31 to 34 in, hip 40 to 43 in | L | not published | waist 30.5 to 33 in, hip 41.5 to 44 in | not published |
| XL | waist 34 to 37 in, hip 43 to 46 in | XL | XL | waist 33 to 35.5 in, hip 44 to 46.5 in | not published |
| XXL | waist 37 to 40 in, hip 46 to 49 in | XXL | XXL | waist 35.5 to 39 in, hip 46.5 to 50 in | not published |
| 3XL | waist 40 to 43 in, hip 49 to 52 in | XXXL | XXXL | waist 39 to 42.5 in, hip 50 to 53.5 in | not published |
| 1X | waist 39 to 43.5 in, hip 47 to 50.5 in | XXXL | not published | waist 39 to 42.5 in, hip 50 to 53.5 in | not published |
| 2X | waist 43.5 to 48.5 in, hip 50.5 to 54.5 in | 4XL | not published | waist 42.5 to 46 in, hip 53.5 to 57 in | not published |
| 3X | waist 48.5 to 53 in, hip 54.5 to 58 in | 6XL | not published | waist 49.5 to 53 in, hip 60.5 to 64 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
- Under Armour size guide, read on 2026-09-17. Under Armour on TrueToSize
- Girlfriend Collective size guide, read on 2026-09-17. Girlfriend Collective on TrueToSize