[Esandes]

I’m not exactly sure where this belongs but this seemed like the right place. I am wondering if anyone knows what this “phenomenon” or this part of the body is called, or if there are other threads about it, but it occurs where the shirt bridges the shoulder and breast and leaves a gap to see the slope of the breast. It can be drastic or subtle. Please see the pics below for examples. Ps a pic is worth a thousand words.