Question for Baneau Bra

Hi,

I'm trying & failing in finding a pattern for the type of bandeau bra I want to make. I like the comfort of the traditional stretchy bandeau bra, but I want to be able to wear it with V-Neck or lower cut dresses & tops. Can I just do a deep gathering in the front with a sweatheart style top band? I tried a few different seraches & couldn't find anything other than traditional strapless bras. I'm looking for something more comfortable than those.

I did have the idea of curving the top down & the putting a v or u shaped wire/boning in the middle to make it pluge to my liking but I'm not sure if that would be structurally sound. Looking to use a soft stretch material.

Any suggestions on patterns or if you have any suggestions on getting the shape I want that would be greatly appreciated.