Marks & Spencer to SHEFIT bra size
The short answer
Marks & Spencer 34DD is SHEFIT Luxe by the two brands' own charts.
The target brand sells lettered sizes that each cover a block of band and cup sizes.
| Marks & Spencer | Marks & Spencer builds it for | SHEFIT, by chart | Same label | SHEFIT builds it for | SHEFIT also prints |
|---|---|---|---|---|---|
| 34AA | not published | XS | not published | bust 29 to 31 in, underbust 22 to 27 in | not published |
| 34A | not published | XS | not published | bust 29 to 31 in, underbust 22 to 27 in | not published |
| 34B | not published | S | not published | bust 32 to 35 in, underbust 25 to 32 in | not published |
| 34C | not published | S | not published | bust 32 to 35 in, underbust 25 to 32 in | not published |
| 34D | not published | M | not published | bust 35 to 38 in, underbust 26 to 33.5 in | not published |
| 34DD | not published | Luxe | not published | bust 38 to 40 in, underbust 29 to 36 in | not published |
| 34E | not published | Luxe | not published | bust 38 to 40 in, underbust 29 to 36 in | not published |
| 34F | not published | 1Luxe | not published | bust 40 to 42 in, underbust 31 to 38 in | not published |
| 34G | not published | 1Luxe | not published | bust 40 to 42 in, underbust 31 to 38 in | not published |
| 34GG | not published | 2Luxe | not published | bust 42 to 44 in, underbust 32 to 40 in | not published |
| 34H | not published | 1Luxe | not published | bust 40 to 42 in, underbust 31 to 38 in | not published |
| 34J | not published | not made | not published | not published | not published |
| 34K | not published | 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 size guide, read on 2026-09-18.
- SHEFIT size guide, read on 2026-09-18. SHEFIT on TrueToSize