A demi cup covers roughly the top half of the breast and has a lower, more open cut. That low-cut shape creates a modest plunge that works well with lower necklines while offering less coverage than fuller or heavily lined push-up styles.
Materials shown include 100% nylon; microfiber blends listed as 77% nylon/23% spandex; lace blends listed as 84% nylon/16% spandex; and recycled‑blend options such as 88% recycled nylon/12% spandex and 74% recycled nylon/21% nylon/5% spandex.
Support features include underwire and push‑up construction for lift, padded/contour cups for shaping, boning sewn into side seams for extra support, supportive elastic bottom bands, and sewn‑in pads for light support.
Most list back hook‑style closures (described as “Back Hook and Loop Fastener” or “Hook + eye back closure”), while other styles are pullover/pull‑on and clasp‑free.
Results include traditional band/cup sizing (examples list 32A–40D and a title showing 40DDD) and size‑based labels such as XS–3XL.