Marks & Spencer (Goodmove) to Onzie leggings size
The short answer
Marks & Spencer (Goodmove) 14 is Onzie L/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 | Onzie, by chart | Same label | Onzie builds it for | Onzie also prints |
|---|---|---|---|---|---|
| 6 | waist 24 in, hip 33.8 in | X/S | not published | waist 24 to 26 in, hip 33 to 35 in | US numeric 0-2 |
| 8 | waist 25.5 in, hip 35.5 in | X/S | not published | waist 24 to 26 in, hip 33 to 35 in | US numeric 0-2 |
| 10 | waist 27.5 in, hip 37.5 in | S/M | not published | waist 26 to 28 in, hip 36 to 38 in | US numeric 2-6 |
| 12 | waist 29.5 in, hip 39.5 in | M/L | not published | waist 28 to 31 in, hip 38 to 40 in | US numeric 6-8 |
| 14 | waist 31.8 in, hip 41.5 in | L/L | not published | waist 31 to 33 in, hip 40 to 42 in | US numeric 10-12 |
| 16 | waist 34 in, hip 43.3 in | XL | not published | waist 34 to 37 in, hip 43 to 45 in | US numeric 14-16 |
| 18 | waist 36.3 in, hip 45.3 in | XL | not published | waist 34 to 37 in, hip 43 to 45 in | US numeric 14-16 |
| 20 | waist 38.5 in, hip 47.5 in | 1X | not published | waist 38 to 40 in, hip 46 to 48 in | US numeric 16-18 |
| 22 | waist 41 in, hip 50 in | 1X | not published | waist 38 to 40 in, hip 46 to 48 in | US numeric 16-18 |
| 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.
- Onzie size guide, read on 2026-09-18.