Hi Angie
As someone with a large bust, I notice that sometimes there is slight whiskering in knit tops right between the breasts. Sometimes a bra design can exaggerate it, but often even a minute change in bust-size due to hormonal fluctuations can cause this. This doesn't happen with woven fabrics with a bit of stretch, only regular t-shirts and cotton knits.
I have tried sizing up, but then the shoulders don't fit at all. The size I wear right now is already very lose for the rest of my body. I try to choose deep V necks, these do fit better.
Is there anything I can do for round necks? I need tshirts for workout and often wonder if the slight whiskering looks bad. I tend to keeping pulling and tugging my tshirt because I'm conscious. Is slight whiskering OK?