It depends on the style and your comfort. Some shapewear can replace your underwear or bra, while other pieces are designed to be worn over them. Check the product description for details about the gusset, cups and built-in support.
Here’s how to choose the most comfortable combination for your outfit.
Do You Wear Underwear With Shapewear?
You can wear underwear with shapewear, but whether you need it depends on the garment.

Shaping Briefs and Bodysuits
Shaping briefs and shapewear bodysuits with a lined gusset may be suitable to wear as your underwear, provided the product’s instructions allow it. A gusset is the panel at the crotch of the garment.
A snap closure or open gusset does not automatically mean a garment is designed to replace underwear. Check the lining and product details before deciding.
If you prefer an extra layer, choose lightweight, seamless underwear with flat edges to help reduce visible lines.
Shaping Shorts
Some shaping shorts and briefs are designed to double as underwear; others work best over a separate pair. Check the gusset and product description.
If you wear underwear underneath, choose a smooth pair that stays in place without bunching. Thick seams, lace and bulky waistbands may show through fitted clothing.
Waist Trainer Leggings and Activewear
Wear underwear beneath waist trainer leggings according to your preference and the garment’s design. Seamless underwear is a practical option for a smooth finish.
Tummy control or shaping panels alone do not mean leggings are designed to replace underwear.
Do You Wear a Bra With Shapewear?
The main things to consider are bust coverage, built-in support and how much support feels comfortable for you.

Open-Bust Shapewear
Open-bust shapewear is designed to be worn with your own bra. It shapes the torso while letting you choose the bra that works best for your bust and outfit.
For example, the Crossover Open Chest BodySculpt Shapewear features an open-bust design for pairing with your preferred bra.
Match your bra to the neckline and straps of your clothing so it stays discreet.
Bodysuits, Tanks and Camis With Bust Coverage
Bust coverage does not always mean built-in bra support. Some bodysuits and shaping tanks and camis offer light support or removable padding, while others accommodate a separate bra.
You may prefer to wear a bra if:
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The garment does not provide enough support on its own.
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You want more lift or coverage.
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You feel more comfortable with additional support.
Check the product description for details about cups, padding and support before choosing.
Shaping Dresses and Tops
For shaping dresses and shaping tops, check whether the piece includes a built-in bra or simply has shaping panels through the waist and torso.
If you need a separate bra, choose one that works with the garment’s neckline, back and straps.
How Can I Avoid Visible Underwear or Bra Lines?
For a smoother finish beneath clothing:
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Choose seamless underwear with flat edges.
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Avoid bulky seams, lace or thick waistbands under fitted fabrics.
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Choose a colour close to your skin tone beneath light clothing.
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Smooth out each layer before getting dressed.
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Check the finished outfit from the front, side and back.
You do not need to size down for a smoother look. Shapewear should feel snug and supportive without painful digging, restricted movement or difficulty breathing.
What Is the Best Option for Everyday Wear?
Choose the combination that feels comfortable and suits the garment’s design. Wearing shapewear without separate underwear can reduce extra layers when the piece is designed for it. Adding seamless underwear may feel more comfortable or convenient for you.
If you wear a garment directly against your skin, wash it after each wear according to its care instructions.
Still Unsure About a BodyFlexx Style?
Check the product description for information about bust support, padding, closures and lining. For help choosing what to wear underneath a specific piece, contact BodyFlexx Support.