Bands

	28	30	32	34	36	38	40	42	44
Sweet Nothings By Maidenform			32	34	36	38	40	42
Parfait By Affinitas	28	30	32	34	36	38	40	42	44

	Sweet Nothings By Maidenform	Parfait By Affinitas
28		28
30		30
32	32	32
34	34	34
36	36	36
38	38	38
40	40	40
42	42	42
44		44

Cups

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
Sweet Nothings By Maidenform	A	B	C	D	DD	DDD
Parfait By Affinitas		B	C	D	DD	E	F	FF	G	GG	H	HH	J	JJ	K

	Sweet Nothings By Maidenform	Parfait By Affinitas
1	A
2	B	B
3	C	C
4	D	D
5	DD	DD
6	DDD	E
7		F
8		FF
9		G
10		GG
11		H
12		HH
13		J
14		JJ
15		K

Uses USA sizing

Also labeled as: UK, EU, FR

Uses UK sizing

Also labeled as: US, EU, FR, AUS, IT, JP

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.