The briefs tend to be cut a bit more narrow in the rear than the traditional American cut.
SIZES FOR BRAS
Adea Bra Size
USA BUST SIZE
1
34A
32B
2
34B
32C
3
26B
34C
4
38B
36C
5
36D
2C
34C
32D
3C
36C
34D
3D
34C
36D
4D
36C
38D
** Because size is a subjective notion that depends on the consumers expectations: a woman can be a 34C but prefer to have less coverage in a 36B bra which will give her bust an uplift. Or she can be a 34B and prefer the control and coverage of a 32C.