Bands

	30	32	34	36	38	40	42	44
Victoria's Secret	30	32	34	36	38	40	42	44
Self Expressions By Maidenform			34	36	38

	Victoria's Secret	Self Expressions By Maidenform
30	30
32	32
34	34	34
36	36	36
38	38	38
40	40
42	42
44	44

Cups

	0	1	2	3	4	5	6	7
Victoria's Secret	AA	A	B	C	D	DD	DDD	G
Self Expressions By Maidenform		A	B	C	D	DD

	Victoria's Secret	Self Expressions By Maidenform
	AA
1	A	A
2	B	B
3	C	C
4	D	D
5	DD	DD
6	DDD
7	G

Uses USA sizing

Also labeled as: EU

Victoria's Secret manufactures some bras sized S/M/L

Uses USA sizing

Self Expressions By Maidenform manufactures some bras sized S/M/L

This means that this brand at some point used some way to match their cups, from their main sizing system to other regions, for example:

UK	D	DD	E	F	FF
US	D	E	F	G	H

On this fictitious example, E cups in US correspond to DD cups in UK.

Later, at some point they decided to change how they do their cup conversions, in this case:

UK	D	DD	E	F	FF
US	D	DD	DDD	E	F

Note the introduction of DD, DDD cups shifting now E cups match to F cups.

Now, people that was buying by US sizes will now be confused on why things don't fit the same.

Click the "Sizing information" link to see what they changed.