Petra Satin Open Cup Babydoll: Fit, Styling and Care Tips

By Frederick's of Hollywood®: Sexy Lingerie, Bras, Panties & More | Published: 2026-11-02

Category: Product Reviews

A practical guide to sizing, styling, and caring for the Petra Satin Open Cup Babydoll, with step-by-step checks for an open cup fit and satin that lasts.

Quick answer

Start by checking the Petra Satin Open Cup Babydoll's lightly lined underwire cups against your usual bra size, then style it with a matching G-string and care for the satin with cool hand washing. The steps below walk you through fit, styling, and care in order.

Why the open-cup design changes your sizing approach

The Petra Satin Open Cup Babydoll uses lightly lined underwire cups that sit under the bust rather than covering it. That means the band and wire, not cup coverage, do most of the fitting work. If you normally choose a babydoll by cup size alone, you may end up with a band that rides up or wires that press. Treat this piece more like an underwire bra with a flouncy overlay.

The matching G-string is included, so you are fitting two pieces at once. Check the G-string's waistband against your hip measurement before you commit, especially if you are between sizes. Because the set is sold together, a poor G-string fit is a reason to size differently or look at another style rather than assume you can swap the bottom later.

Where satin works well and where it needs a plan

Satin gives the Petra a smooth, reflective finish that photographs well and feels dressy, but it also shows creases and water marks more than matte fabrics. That is not a flaw, just a trade-off: you get a polished look in exchange for a little more careful handling. If you want a babydoll you can toss in a travel bag without thought, satin will ask more of you.

For styling, the open-cup detail is the focal point, so keep the rest simple. A matching robe or a sheer wrap adds coverage without hiding the design. Avoid layering heavy jewelry or textured outerwear directly over the cups, since friction is the main enemy of satin's sheen.

Step-by-step: fit, style, and care for the Petra babydoll

1. Measure before you choose a size: Take a snug underbust measurement and a loose bust measurement, then compare them with the size chart for the Petra. Common mistake: guessing from your dress size instead of your bra measurements, which can leave the underwire sitting too low. Write your measurements down and recheck them against the chart before ordering.
2. Check the band and wire first: Put the babydoll on and fasten it as you would a bra. The band should feel secure without digging in, and the wire should sit flat against your ribcage under the bust. Common mistake: tightening the straps to fix a loose band, which pulls the cups out of position. If the band rides up, try a smaller size rather than adjusting the straps.
3. Confirm the open-cup placement: Look in a mirror to see that the open area sits where you want it and the lightly lined cups support from below. Common mistake: judging the fit while slouching, which shifts the cups forward. Stand tall and recheck. Recheck the fit while seated, since the flouncy silhouette can shift when you move.
4. Fit the matching G-string separately: Slide the G-string on and check that the waistband lies flat without twisting. Common mistake: accepting a G-string that cuts in because the babydoll fits well. If it does, the set is not the right size for you. Both pieces should feel comfortable on their own, not just together.
5. Style it for the setting: For a photoshoot or evening, pair the Petra with a sheer robe and simple heels. For everyday wear at home, add soft shorts or a light cardigan over the top. Common mistake: layering rough lace or denim directly over the satin, which snags the surface. Choose one focal layer and keep everything else smooth.
6. Wash satin by hand in cool water: Fill a basin with cool water and a small amount of mild detergent, submerge the babydoll and G-string, and gently squeeze the water through. Do not wring or rub the fabric. Common mistake: using hot water or bleach, which dulls satin's sheen and weakens the underwire casing. Rinse until the water runs clear, then press the water out with a towel instead of twisting.
7. Dry flat and store with care: Lay the babydoll flat on a clean towel away from direct heat or sunlight, and reshape the cups while damp. Store it folded loosely or hung on a padded hanger so the underwire keeps its shape. Common mistake: hanging it by a strap, which stretches the satin over time. Keep the G-string separate from rough fasteners to avoid pulls.

Product facts

Petra Satin Open Cup Babydoll: Lightly lined underwire cups with a flouncy silhouette and a matching G-string. The underwire gives structure for fit checks, while the included G-string means you should assess both pieces together.
Petra Satin Open Cup Babydoll