Marks & Spencer (Goodmove) to Decathlon leggings size
The short answer
Marks & Spencer (Goodmove) 14 is Decathlon L 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.
| Marks & Spencer (Goodmove) | Marks & Spencer (Goodmove) builds it for | Decathlon, by chart | Same label | Decathlon builds it for | Decathlon also prints |
|---|---|---|---|---|---|
| 6 | waist 24 in, hip 33.8 in | 2XS | not published | waist 23.6 to 24.8 in, hip 31.1 to 33.5 in | not published |
| 8 | waist 25.5 in, hip 35.5 in | XS | not published | waist 25.2 to 26.8 in, hip 33.5 to 35.4 in | not published |
| 10 | waist 27.5 in, hip 37.5 in | S | not published | waist 27.2 to 28.7 in, hip 35.4 to 37.8 in | not published |
| 12 | waist 29.5 in, hip 39.5 in | M | not published | waist 29.1 to 31.1 in, hip 37.8 to 40.2 in | not published |
| 14 | waist 31.8 in, hip 41.5 in | L | not published | waist 31.5 to 33.9 in, hip 40.2 to 42.5 in | not published |
| 16 | waist 34 in, hip 43.3 in | L | not published | waist 31.5 to 33.9 in, hip 40.2 to 42.5 in | not published |
| 18 | waist 36.3 in, hip 45.3 in | XL | not published | waist 34.3 to 36.6 in, hip 42.5 to 44.9 in | not published |
| 20 | waist 38.5 in, hip 47.5 in | 2XL | not published | waist 37 to 39.4 in, hip 44.9 to 47.2 in | not published |
| 22 | waist 41 in, hip 50 in | not made | not published | not published | not published |
| 24 | waist 43.3 in, hip 52.5 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
- Marks & Spencer (Goodmove) size guide, read on 2026-09-18.
- Decathlon size guide, read on 2026-09-18.