Under Armour to Marks & Spencer (Goodmove) leggings size
The short answer
Under Armour XL is Marks & Spencer (Goodmove) 18 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.
| Under Armour | Under Armour builds it for | Marks & Spencer (Goodmove), by chart | Same label | Marks & Spencer (Goodmove) builds it for | Marks & Spencer (Goodmove) also prints |
|---|---|---|---|---|---|
| XXS | waist 24.5 to 25.5 in, hip 33 to 34.5 in | 8 | not published | waist 25.5 in, hip 35.5 in | US numeric 4 · AU 8 |
| XS | waist 25.5 to 27 in, hip 34.5 to 36 in | 8 or 10 | not published | waist 25.5 in, hip 35.5 in | US numeric 4 · AU 8 |
| SM | waist 27 to 29 in, hip 36 to 38 in | 10 | not published | waist 27.5 in, hip 37.5 in | US numeric 6 · AU 10 |
| MD | waist 29 to 31 in, hip 38 to 40 in | 12 | not published | waist 29.5 in, hip 39.5 in | US numeric 8 · AU 12 |
| LG | waist 31 to 34 in, hip 40 to 43 in | 14 | not published | waist 31.8 in, hip 41.5 in | US numeric 10 · AU 14 |
| XL | waist 34 to 37 in, hip 43 to 46 in | 18 | not published | waist 36.3 in, hip 45.3 in | US numeric 14 · AU 18 |
| XXL | waist 37 to 40 in, hip 46 to 49 in | 20 | not published | waist 38.5 in, hip 47.5 in | US numeric 16 · AU 20 |
| 3XL | waist 40 to 43 in, hip 49 to 52 in | 22 | not published | waist 41 in, hip 50 in | US numeric 18 · AU 22 |
| 1X | waist 39 to 43.5 in, hip 47 to 50.5 in | 22 | not published | waist 41 in, hip 50 in | US numeric 18 · AU 22 |
| 2X | waist 43.5 to 48.5 in, hip 50.5 to 54.5 in | 24 | not published | waist 43.3 in, hip 52.5 in | US numeric 20 · AU 24 |
| 3X | waist 48.5 to 53 in, hip 54.5 to 58 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
- Under Armour size guide, read on 2026-09-17. Under Armour on TrueToSize
- Marks & Spencer (Goodmove) size guide, read on 2026-09-18.