What is sistersize?

Ever tried on a bra, where the bra cup fit perfectly, but the band was loose? But then when you went down a band size, whilst keeping your cup size, the cup started to feel tight & then the underwires started to dig in, making the new bra size seemed even more uncomfortable? Well, that's when you find your sister size! Watch now to discover the secret to finding the perfect fit.

Find your sister size

If your cup doesn't fit: Go up or down within the column. Cup size increase from top to bottom. If your band doesn't fit: Go left or right within the row. Band size increases from left to right. Sister Sizing: Sizes that shares the same row are called sister sizes. They share the same cup volume (even they have different letterings). For example, 28D, 30C, 32B, 34A all have the same cup volume sizes but different band sizes.

↓ Cup Size / → Band size

28 30 32 34 36 38
28B 30A
28C 30B 32A
28D 30C 32B 34A
28E/DD 30D 32C 34B 36A
28F/DDD/E 30E/DD 32D 34C 36B 38A
30F/DDD/E 32E/DD 34D 36C 38B
32F/DDD/E 34E/DD 36D 38C
34F/DDD/E 36E/DD 38D
36F/DDD/E 38E/DD