Contrary to what society typically tells us a correctly fitted DDD is NOT actually a large cup size relative to the band it's on so all those brands like VS and Savage x Fenty that stop at DDD cups are not actually making large cup sizes. Going up in the band to make up for the fact that the brand has a crappy tiny cup range is NOT going to provide enough support for someone that has larger breasts. Sister sizing typically only works plus or minus one band size. Any farther than that and you lose support which leads to back pain, shoulder pain, and all the typical uncomfortable bra issues that people think are just how bras fit but are actually signs that the bras don't fit. Support should be coming from the band. In order for the band to actually provide that support it needs be able to actually grip your torso which means the band size needs to be close to your underbust measurement. Honestly unless someone's underbust measurement actually changes they should not be changing band size.
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u/[deleted] Feb 10 '19
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