Babydoll, chemise, or bodysuit?
These words get used interchangeably. They should not be.
Search for a babydoll and half the results will be chemises. Search for a chemise and you will get slips, nightdresses and the occasional teddy. The vocabulary in this category is loose, and that would be a harmless annoyance except for one thing: these cuts fit completely differently, and the difference matters more on a plus-size body than on a straight-size one.
Here is what actually separates them, and how to choose based on which of your measurements you are least confident about.
Babydoll
Where it fits: at the bust, and then nowhere else.
A babydoll is fitted through the cups and flares out immediately below them, from a seam that sits under the bust rather than at the natural waist. The body hangs free. Length usually falls somewhere between upper and mid thigh.
What decides the size: bust, and to a lesser degree torso length. Waist and hip barely participate — the fabric is not touching them.
Why it suits a plus-size body: it is the most forgiving cut in any lingerie drawer. If your waist and hip measurements land in different sizes, or if you carry weight around the middle and dislike anything clinging there, a babydoll sidesteps the question entirely. It is also the safest first order from a brand you have not bought from before, because there is simply less that can be wrong.
Where it goes wrong: the underbust seam. If the band is too tight it digs; if it is too loose the whole garment loses its shape and hangs like a tent. This is why underbust is worth measuring even though most charts skip it.
Buy this if: you are unsure of your size, you want coverage through the middle, or you are ordering for someone else.
Chemise
Where it fits: at the shoulder, skimming down.
A chemise hangs from thin straps with no seam under the bust. It falls straight or in a slight A-line from shoulder to hem, usually mid-thigh or a little longer than a babydoll. Where a babydoll flares away from the body, a chemise follows it.
What decides the size: whichever of your bust and hip is larger, plus torso length for how it hangs.
Why it suits a plus-size body: it gives a long vertical line, and in a high-stretch lace it moves with the body rather than fighting it. It is more elegant than a babydoll and slightly less forgiving — a fair trade.
Where it goes wrong: the hip. Because the fabric skims rather than flares, a chemise that clears the bust but not the hip will ride up when you sit or move. In a low-stretch fabric like satin this is the single most common complaint about the cut. In a high-stretch lace it mostly disappears.
Buy this if: your bust and hip are reasonably close in size, or you want something that reads as elegant rather than playful.
Bodysuit and teddy
Where it fits: everywhere, at once.
A one-piece garment covering torso and crotch, fastening with snaps at the gusset. “Teddy” tends to mean the lacier, more decorative version; “bodysuit” the more structured one, but the terms overlap and different shops draw the line in different places.
What decides the size: torso length. Not bust, not hip — torso.
Why this is the hard one: a one-piece has to reach from your shoulder to your crotch and back up. That distance is your torso measurement, and it varies between bodies far more than the circumference measurements do. Two women with identical bust, waist and hip can need different sizes in the same bodysuit because one is longer through the body.
If the garment’s torso is short for you, it pulls down on the shoulders, rides up at the gusset, and is uncomfortable within twenty minutes no matter how well the bust and hip fit. There is no adjusting your way out of it — the strap adjustment on most bodysuits gives you an inch or two, and a torso mismatch is usually more than that.
Where it goes wrong: everywhere the torso is short. Shoulders, gusset, and the whole line of the garment.
Buy this if: you have measured your torso length and it sits comfortably inside the range for your size. If you have not measured it, measure it before ordering a one-piece — it is the one case where we would rather you did not guess.
Slip
Where it fits: at the shoulder and the bust, then follows the body closely.
Often bias-cut, usually satin or silk, longer than a chemise — mid-thigh to knee, sometimes ankle. Closer to the body than a chemise, with less stretch.
What decides the size: bust and hip, both, with less room for error than any other cut except the bodysuit.
Where it goes wrong: bias-cut satin has almost no give across the grain. Size up if you are between; there is no fabric stretch to rescue you.
Buy this if: you know your measurements are accurate and you want something that reads as expensive.
Choose by the measurement you trust least
That is the practical version of all of the above. Work out which of your numbers you are least confident about, and let it choose the cut:
| Unsure about | Buy | Avoid |
|---|---|---|
| Waist | Babydoll | Slip, bodysuit |
| Hip | Babydoll | Chemise in satin, slip |
| Bust | Chemise in high-stretch lace | Anything with a fixed band |
| Torso length | Babydoll or chemise | Bodysuit, teddy |
| All of them | Babydoll, high stretch | Everything else, for now |
And read the stretch level before anything else
The cut tells you where a garment touches your body. The stretch level tells you how much it forgives when the fit is imperfect. Between the two, stretch is the more useful number.
A high-stretch chemise forgives more than a low-stretch babydoll, even though the babydoll is the more forgiving cut in principle. Every product page on this site states the stretch level, measured on the sample rather than taken from a supplier sheet, along with where the piece adjusts — straps, back closures, waist ties.
Alongside it you will find the fit record: the measurements of the woman in the photograph and the exact size on her body, so you can see how that cut sits on a shape near yours before you decide.