Why are bra sizes SO inconsistent at Victoria's Secret? Turns out

If Pink gives me one measurement for bra size, but Victoria's

Bra Sizing is Not Consistent

Bali Comfort Revolution Smart Sizes Bralette, S, Blushing Rouge at

Bra Sizing is Not Consistent

Iris & Lilly Women's Cotton Demi Bra, Pack of 2, Grey

How accurate is bra sizing in places like Victoria's Secret? - Quora

Are Victoria's Secret sizes accurate? - Quora

Bra sizing by company, Bustyresources Wiki

Victoria's Secret, Bustyresources Wiki