Cupless Lingerie
Cupless lingerie, also called open cup or open bust lingerie, is intimate apparel designed with the bust left uncovered: sets, corsets, teddies, bodysuits, and chemises where structure frames the breasts instead of covering them. Our collection comes from Obsessive, the Polish sexy lingerie brand, in sizes from US 6 to 18. Most pieces are coordinated sets, and many pair the open bust with a crotchless bottom. Browse the catalog below. Underneath the products you'll find the difference between cupless lingerie and cupless bras, a breakdown of piece types, plus-size availability, and sizing guidance.
What cupless lingerie actually is
The bust stays open. Everything else stays dressed.
That's the working definition of cupless lingerie. A garment (corset, teddy, bodysuit, or a coordinated set) keeps its full structure everywhere except the cups, which are either absent entirely or reduced to a supportive frame under the breast.
This is bedroom and occasion wear, not underwear in the practical sense. Nobody buys a cupless corset to wear under a work blouse. The purpose is visual: a deliberate, styled reveal built into an otherwise complete outfit.
Is cupless lingerie the same as open cup lingerie?
Yes. Cupless, open cup, and open bust lingerie are three names for the same construction, and some European brands add a fourth: ouvert. Retailers split the terms inconsistently, which is why searching any of them brings up overlapping results. "Cupless" and "open cup" are the most precise, since they describe the garment rather than the level of exposure.
What's the difference between cupless lingerie and cupless bras?
Scope. A cupless bra is a single garment: band, straps, open cups. Cupless lingerie is the whole category around it: corsets with open cups, teddies with an exposed bust, bodysuits, chemises, and multi-piece sets where the open-cup element is one part of a larger coordinated look. If you want just the bra, our cupless bras page covers construction, support, and standalone styles in detail. If you want a complete outfit built around the open bust, you're on the right page.
In practice the two categories overlap. Several sets appear in both, because a set built around a cupless bra belongs to each. The difference is what you're shopping for: a garment versus a look.
Types of cupless lingerie at Lascava
Five piece types, all Obsessive, all with the bust left open.

Cupless corsets
The most structured pieces in the category. An open cup corset shapes the waist, anchors garter straps, and frames the bust from below more firmly than a teddy or set can. The Obsessive Dominna and Euridia are classic examples in black, the Denissa adds red accents, and the Soranna comes in an unusual bronze shimmer finish. See the full range in sexy corsets.
Cupless teddies and bodysuits
One-piece garments with the bust left open. Teddies lean decorative (the red lace Matildea, the shiny-finish Keira Lise), bodysuits lean strappy and architectural (the Euridia). A cupless teddy or bodysuit is the simplest one-piece option: no separate bra, garter belt, or matching bottom to coordinate. Browse more one-piece styles in bodysuits and teddies.
Cupless lingerie sets
Coordinated pairings: an open-cup bra or top with a matching bottom, often crotchless. The Cordellis, Heavenlly, Tulia, and Delishya are typical two-piece sets. The Lecille is a 3-piece open cup bra set with a crotchless thong. Sets are the largest group in the catalog. For the broader range beyond cupless, see sexy lingerie sets.
Cupless chemises
Rarer. A chemise with an open bust combines nightwear softness with the exposed silhouette. The red lace Rediosa is the current example. More slip-style pieces live in sexy chemises.
Accent pieces
The Hersis harness is strapping without cups at all: an adjustable frame worn over bare skin or layered on other lingerie. Not cupless in the bra sense, but it belongs to the same open-bust styling family.
Cupless and crotchless together
Why do so many cupless sets come with a crotchless bottom? Because the design logic is the same: keep the garment, open the focal point. A set that applies this once at the bust usually applies it again below.
It's also why cupless crotchless lingerie shows up as its own search term: shoppers want both details in one set, and roughly half of ours deliver exactly that.
If the bottom matters more to you than the top, browse the dedicated crotchless lingerie category. The two collections share several sets, and each page shows the full detail for its focus.
How to choose cupless lingerie
Start with the silhouette, not the fabric. A corset changes your shape. A teddy follows it. A set lets you mix coverage between top and bottom. Decide how much structure you want before comparing lace patterns.
Occasion matters. A two-piece lace set is regular intimate wear you can reach for often, while a corset with garters and stockings is closer to an event that takes assembly and rewards it.
| What you need | Best starting point |
|---|---|
| First cupless purchase | Coordinated set |
| Most structure and shaping | Open cup corset |
| One-piece look, no coordination | Teddy or bodysuit |
| Softer, nightwear feel | Cupless chemise |
| Plus-size fit (US 14-18) | XL to 3XL pieces in this category |
| Matching revealing set | Cupless crotchless lingerie set |
Color runs the usual Obsessive range. Black dominates. Red reads as occasion wear. White suits bridal contexts. The bronze Soranna is the outlier, and pieces like it tend to sell out fast precisely because there's nothing else like them in the catalog.
Plus size cupless lingerie
Yes, it exists here. This category currently stocks 15 pieces in XL, 8 in 2XL, and 4 in 3XL, which covers US dress sizes up to 18. That's a real difference from our cupless bras category, where the ceiling is currently US 14. If a plus-size open-cup piece is what you're after, this page is where the options are.
One honest note on fit. Cupless designs put the structural load on the underbust band and the torso panels, so in larger sizes the construction matters more, not less. Corsets handle this best because the boning distributes tension. Strappy teddies vary piece by piece. Check the size chart on each product page rather than assuming your usual size carries over.
Sizing for Obsessive cupless lingerie
Obsessive uses dual sizing: each piece is labeled with two adjacent sizes (S/M, L/XL, XL/2XL and so on) and cut to fit either. Measure your underbust and hips first. The bust measurement matters less here than in regular lingerie, for the obvious reason.
| Obsessive size | US / UK dress size | Bust (inches) | Underbust (inches) | Hips (inches) |
|---|---|---|---|---|
| XS/S | 6-8 | 31.5-35 | 26.5-29 | 33-37 |
| S/M | 8-10 | 33.5-37 | 27-30.5 | 35.5-39.5 |
| M/L | 10-12 | 35.5-39 | 29-31.5 | 37.5-41.5 |
| L/XL | 12-14 | 37.5-41 | 31-34 | 40-44 |
| XL/2XL | 14-16 | 39.5-43 | 32-35.5 | 42-45.5 |
| 2XL/3XL | 16-18 | 41.5-45 | 34.5-37.5 | 44-48 |
Corsets are the exception to size forgiveness. A corset that's too large loses its shaping function entirely, so when in doubt on a corset, size down, not up.
Each product page lists exact measurements for that style. Full conversion tables are on our size guide.
Styling cupless lingerie
Three ways these pieces get worn.
As the complete outfit. The default. A corset or teddy is self-sufficient. Add stockings and the look is finished.
Built up into an ensemble. Sets with garter straps invite stockings, and a robe over the top creates the reveal moment. This is where corsets earn their price: they anchor a full look the way a single bra can't.
Layered under sheer. An open-cup piece under a sheer robe or chemise softens the exposure while keeping it visible. Best when the outer layer is plain mesh and the cupless piece carries the detail.

Explore more
- Cupless bras — the standalone garment: construction, support, and fit in detail.
- Crotchless lingerie — the companion category. Many sets appear in both.
- Sexy corsets — the full corset range, cupless and covered.
- Bodysuits and teddies — one-piece styles across coverage levels.
- Sheer lingerie — transparency instead of openness: mesh and lace with full coverage.
- Sexy lingerie collection — the complete range.