Comparing a 65DD Kris Line Toni Semi Soft with a 30DD Wacoal La Femme Underwire T-shirt Bra (853117)
The band is pretty much the same in both bras. The 65DD bra has deeper cups than the 30DD bra, but they are about the same width.
Bands are equivalent.
30:5 Kris Line
Toni Semi Soft
La Femme Underwire T-shirt Bra (853117)