Lingerie Size Guide: How to Choose Between S-M and L-XL

Most lingerie brands, including much of what's sold across Jordan, size their gowns, babydolls, robe sets, and sleepwear in just two bands: S-M and L-XL. That's convenient at checkout but confusing the first time you shop, especially if you're used to numbered clothing sizes or a specific bra size. This guide breaks down what S-M and L-XL actually mean, how to measure yourself at home, and what to do when you fall between the two — including guidance for bridal pieces, where getting it right matters most.

Why Lingerie Sizing Works Differently From Clothing Sizing

Most stretch lingerie — babydolls, robe sets, gowns, and pajama sets — is cut from fabrics with genuine stretch, like lace-blend mesh or satin with spandex. That stretch is what lets a single S-M size comfortably fit a range of body types rather than requiring six separate numbered sizes. It's a practical system, but it means the label doesn't map directly onto your normal clothing size or your bra size. A woman who wears a 38D bra and a woman who wears a 34B bra can both fall into the same S-M range for a stretch babydoll, because the piece is sized around bust, waist and hip range rather than cup volume.

How to Measure Yourself for S-M vs L-XL

Skip the guesswork and take three measurements with a soft tape measure: bust (around the fullest part), waist (around the narrowest point, usually just above the belly button), and hips (around the fullest part). As a general industry guide, S-M typically covers roughly a UK 8–12 / EU 36–40 range, while L-XL covers roughly a UK 14–18 / EU 42–46 range — though this varies slightly by style, so always check the size chart shown on each product page before ordering, especially for a first purchase from a new collection.

If your bust, waist and hip measurements fall into different size bands, size up rather than down. A slightly loose fit is far more comfortable and far more flattering than fabric that digs in at the seams.

Fit Differs by Product Type

A robe set with a fitted teddy or bralette top behaves differently from a flowing gown or a loose pajama set. Structured pieces — anything with padded cups, an underwire, or a snug bodice — rely more heavily on an accurate bust measurement, so measure carefully before choosing between the babydolls or robe sets collections. Looser silhouettes, like a flowing gown or a chemise, are far more forgiving, since the fabric skims rather than hugs the body.

Pajama sets and cotton sleepwear pieces, especially in the pajama pants sets collection, tend to run slightly larger and more relaxed by design, since comfort rather than shape is the priority.

Sizing for Bridal Pieces

Bridal lingerie deserves extra care, because it's usually worn under a fitted dress and photographed more than almost any other piece in your collection. If you're shopping the bridal collection, measure yourself as close to the wedding date as comfortably possible — weight and shape can shift in the weeks of wedding planning, sometimes more than brides expect. If a bridal set has a fitted bra top, cross-check with a proper bra measurement using our bra size guide rather than relying on the S-M/L-XL band alone, since the fitted cup is the part most likely to feel wrong on the night if the size is off.

What to Do If You're Between Sizes

When your measurements land right between S-M and L-XL, the fabric matters more than the number. For a stretch mesh or lace piece, sizing down usually still fits comfortably thanks to the fabric's give. For satin, chiffon or anything with less stretch, size up — satin doesn't forgive a snug fit the way lace does, and a size that's slightly loose will still look and feel elegant, while one that's too tight will show at the seams.

Common Sizing Mistakes to Avoid

The most common mistake is guessing a size based on how a similar item fit from a completely different brand — lingerie sizing isn't standardized across labels the way you might hope. Another is measuring over a bra or clothing, which adds bulk and skews the result. And the third is ignoring the product-specific size chart in favor of a general rule, when a single style — especially anything structured, like a robe set with a built-in bralette — can run differently from the rest of the collection.

Where to Find Exact Measurements on Each Product Page

Every product page includes a size chart you can open before adding to cart, showing the bust, waist and hip range used for that specific style. It only takes a few seconds to check, and it's the most reliable way to confirm fit before ordering, especially for pieces where the general S-M/L-XL rule of thumb might not perfectly apply.

Final Thoughts

S-M and L-XL sizing is designed to be simple, but a five-minute measurement at home takes the guesswork out of it completely. Measure your bust, waist and hips, check the size chart on the specific piece you're eyeing, and size up rather than down whenever you're unsure. Explore the full lingerie collection at Zorita Jordan, and if you're shopping for your wedding night, start with the bridal collection and the bra size guide together for the most accurate fit.