Quick answer

Buy the Elasticup Soft-BH if you want one wireless, unpadded bra that stretches across B, C, and D cups and you are willing to size only by your underbust measurement. Skip it if you need a defined cup shape, firm lift, or a bra that holds a specific cup size without stretch.

Why the Elasticup sizes by underbust, not cup

Most bras ask you to match band and cup; the Elasticup Soft-BH instead uses a universal cup range that covers B through D. That removes the guesswork of cup letters, but it also means the fit depends on the band sitting snugly. If the underbust band is too loose, the stretch fabric cannot do its job and the bra will ride up or feel unsupportive.

This is the central trade-off of a stretch soft bra: you gain flexibility across cup sizes and everyday comfort, but you give up the precise, structured fit of a seamed or molded cup. Treat the underbust measurement as the one number that matters.

What the unpadded, wireless design means for shape

Without a shell or underwire, the Elasticup follows your natural curve rather than creating a rounded, projected shape. That suits relaxed days, layering, and anyone who dislikes pressure points, but it will not deliver the lift or separation some outfits require.

The highly elastic, soft material is the reason it can stretch across cup sizes. Expect a close, flexible fit rather than a sculpted one. If you want a smoother silhouette under fitted tops, a lightly padded wireless style may be the better match.

When a stretch soft bra is the wrong tool

Stretch comfort is not the same as support. If you are fuller-busted and want firm hold, or if you need a bra that stays put through high-impact activity, the Elasticup is not designed for that job. The same applies if you prefer a bra that keeps a consistent cup shape all day.

In those cases, look at wireless styles with a shaped cup or a dedicated support design instead of forcing a universal-fit bra to do more than it is made for.

Decision rules for buying the Elasticup Soft-BH

  • Measure your underbust first: Wrap a soft tape snugly around your ribcage directly under your bust and use that number to pick your size. Do not choose based on your usual cup letter. If your underbust lands between two sizes, size down for a snugger band, since the stretch fabric needs tension to stay in place.
  • Check your cup range: The Elasticup is designed for B, C, and D cups. If you normally wear an A cup or a cup above D, this universal fit is outside its intended range.
  • Match the bra to the outfit: Choose the Elasticup for relaxed days, layering, and comfort-first wear. For a defined shape under a fitted top, pick a wireless bra with a shaped cup instead.
  • Decide on support level: If you want firm lift or high-impact hold, this is not the right bra. If you want soft, flexible everyday coverage, it fits the brief.

Product facts at a glance

  • Elasticup Soft-BH: The Elasticup Soft-BH has no shell or underwire and uses a highly elastic, soft material that adapts to your curves. This is what makes the bra comfortable for all-day wear, but it also means the shape stays soft rather than structured.

    Elasticup Soft-BH

    Elasticup Soft-BH

  • Elasticup Soft-BH: Its universal cup sizing covers B through D, and you choose your size only by underbust circumference. You can stop hunting for cup letters, but getting the underbust band right is essential for the stretch to work.

Who the Elasticup Soft-BH suits

Best for

  • Anyone with a B, C, or D cup who wants one wireless bra that stretches across cup sizes
  • Comfort-first everyday wear, lounging, and layering where a soft shape is acceptable

Not for

  • Shoppers who need firm lift, defined cup shape, or high-impact support
  • Cup sizes outside the B–D range or anyone unwilling to size by underbust measurement