Triangle
Fuller coverage, no-wire triangle top, V neckline, wide halter-neck straps.
Available as sliding triangle or assembled on an underbust band.
Side stays provide good support.
Eres suggests
This style is adapted to all busts but especially deeper cups.
If you have a wide back, opt for the sliding triangle which offers better adjustability.
For better support opt for a style assembled on an underbust band.
See all two-pieces' triangle swimsuits