I managed to find this huit eden lagoon fixed straps foam bandeau swimsuit in a size 32c and it fits perfectly. my current measurements are 33-25-37 or 38 hips, and i normally wear a 30d or 32c bra.
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i have a longish torso, yet this doesn't ride up. fits like on the model. there is a thin strip of silicone around the back to keep it from sliding down. the v-shape is held by a hard wire, but it doesn't cut in anywhere. the soft black straps are sewn in and not adjustable but do hold their shap