What Should I Wear Under That? The Ultimate Guide to Solving Every Wardrobe Challenge
Written by Karen RobbinsWhether you're getting dressed for work, a wedding, date night, or just trying to avoid visible lines under your favorite outfit, the right foundation can make all the difference. Here's your guide to what to wear under every outfit.
What Should I Wear Under a Sheer Top?
Whether it's a lightweight button-down, linen blouse, or sheer knit, you want coverage without adding bulk.
We recommend:
SPANXshape® Invisible Supima® Cotton Cami
- Smooths without compression
- Lightweight and breathable
- Creates a clean layer under sheer fabrics
- Virtually invisible under clothing
SPANXshape™ Invisible Supima® Cotton Tank
- Extra coverage
- Perfect for sheer sweaters and blouses
- Soft enough for all-day wear
Best for:
- White button-downs
- Sheer blouses
- Linen shirts
- Lightweight sweaters
What Should I Wear Under a Tight Dress?
For bodycon dresses or knit dresses, you want smooth, powerful shaping without sacrificing comfort.
We recommend:
SPANXsupersculpt™ Transform High-Waisted Mid-Thigh Short
Why it works:
- Maximum tummy sculpting
- Smooths hips and thighs
- Creates a sleek silhouette
- Helps dresses lay beautifully
Best for:
- Cocktail dresses
- Wedding guest dresses
- Formal gowns
- Knit dresses
- Bodycon styles
What Should I Wear If I Want More Butt Lift?
Sometimes you want shaping everywhere—but with a little extra lift.
We recommend:
SPANXshape™ Satin-X Booty Lifting Mid-Thigh Short
Why women love it:
- Enhances your natural shape
- Lifts and defines
- Smooths tummy and thighs
- Comfortable enough for everyday wear
Perfect under:
- Jeans
- Pants
- Pencil skirts
- Fitted dresses
What Should I Wear During Pregnancy?
Comfort becomes just as important as support.
We recommend:
These ultra-soft briefs stretch with your changing body while maintaining their shape.
They're also a favorite for:
- Pregnancy
- Hospital bags
- Early postpartum recovery
- Everyday comfort
What Should I Wear After Having a Baby?
After delivery, many women want underwear that's gentle, stretchy, and doesn't dig in.
We recommend:
Why it works:
- Soft waistband
- Flexible fit
- Comfortable during recovery
- Moves with your body as it changes
What Should I Wear Under Light-Colored Pants?
White jeans, cream trousers, linen pants, and lightweight fabrics can make underwear lines and thigh lines more noticeable. If you're looking for a smooth, invisible finish, a capri-length shaper is a great option because it eliminates the leg line that can sometimes show through thinner fabrics while providing all-over smoothing.
We recommend:
Why it works:
- Provides 360° shaping with targeted tummy control in a lightweight, breathable fabric.
- Capri length means no visible thigh line, making it ideal under thin or light-colored pants.
- Free-cut leg openings create a smooth, undetectable finish.
- Moisture-wicking, quick-drying fabric keeps you comfortable all day.
Best for:
- White jeans
- Cream or ivory trousers
- Linen pants
- Tailored work pants
- Wide-leg pants
- Lightweight fabrics
Pro Tip:
For the most invisible look under white or light-colored clothing, choose a shade that closely matches your skin tone.