By That Girl Whitney Team
This post contains affiliate links. If you buy through them, That Girl Whitney may earn a small commission at no extra cost to you.
You found the perfect dress. It fits your bust, the color makes you glow, and it hits right where you want it to. Then you catch your reflection from the side and notice a line across your hips or a bump where your bra band sits. Shapewear exists for that exact moment.
For a lot of plus size women, shapewear has a bad reputation. Older styles squeezed hard and left you counting the minutes until you could take them off. Modern shapewear is much more comfortable. The goal today is smooth lines under your clothes, so you can stop adjusting and enjoy the event.
The trick is matching the right piece to the right outfit. A bodysuit that looks great under a fitted dress might bunch under a flowy skirt. Thigh shapers that prevent chafing under a maxi dress would show under a mini. Choosing the wrong style is the main reason shapewear feels uncomfortable or shows through.
This guide breaks shapewear down by style, then matches each one to the outfits it works best with. You’ll also learn how to size it so it smooths without squeezing.
Shapewear Styles and What They Do
Most shapewear falls into four categories.
High-waist briefs start above your belly button and end at your hips. They smooth your tummy and keep panty lines from showing. They’re the easiest place to start if you’ve never worn shapewear.
Thigh shapers look like bike shorts and run from your waist to mid-thigh. They smooth your hips and thighs, and they double as protection against chafing under dresses and skirts.
Bodysuits cover your torso from bust to hips, and some include a built-in bra. They give you a smooth line from top to bottom under fitted dresses and tucked-in tops.
Full slips are the lightest option. They don’t compress much, but they help dresses glide over your body instead of clinging. A slip is perfect under lightweight or unlined fabrics.
Shop it: SHAPERMINT tummy control brief or SHAPERX shaping bodysuit
Matching Shapewear to Your Dress
Your dress decides which shapewear works.
Fitted dresses like sheath and bodycon styles show every line, so a bodysuit or high-waist thigh shaper gives you the smoothest finish. Choose a seam-free style with no visible edges.
Wrap and A-line dresses only need smoothing at the waist and hips. A high-waist brief or thigh shaper works well under these.
Flowy maxi and midi dresses don’t need much shaping at all. A lightweight thigh shaper is still worth wearing to prevent chafing on long walks. Our chub rub guide covers more ways to stay comfortable.
Low-back or strapless dresses need special styles. Look for shapewear with a plunging back or a strapless top so it stays hidden.
Match the color to your skin tone, not to your dress. A shade close to your skin disappears under light fabrics, while black or white can show through.
Shop it: SHAPERMINT shaper shorts or Vanity Fair full slip
Sizing Shapewear the Right Way
The most common shapewear mistake is sizing down. It seems logical that a smaller size would smooth more, but going too small makes shapewear roll and dig. That creates the exact bulges you’re trying to hide.
Use the brand’s size chart and measure your waist and hips. If you fall between sizes, size up. Sizing varies widely between brands, so your size in one brand may not match another. Shapewear that fits correctly should feel snug, like a firm hug, without pinching or cutting into your skin.
Check the compression level too. Light compression is best for everyday wear and long days. Firm compression works for short events, but most people find it too much for an eight-hour wedding. If the product page lists compression levels, start with light or medium.
Look for silicone grip strips at the leg openings and waistband. Those strips keep thigh shapers from rolling up and high-waist styles from rolling down.
Getting Comfortable in Shapewear
Even the right shapewear takes a little getting used to. Wear a new piece around the house for an hour before your event. Sit down, bend over, climb the stairs, and reach for a high shelf. If anything rolls or pinches, try a different size before the big day.
Plan for bathroom breaks. Bodysuits with a hook-and-eye or open gusset make restroom trips much easier, which matters at long events like weddings.
Care for your shapewear so it lasts. Hand wash it or use a mesh laundry bag on a gentle cycle, then let it air dry. Heat from the dryer breaks down the stretch fibers that make shapewear work.
Feeling Smooth and Confident in Any Dress
The right shapewear smooths your lines and lets you forget about your outfit. Start with the dress you plan to wear, then size for comfort instead of squeezing. With a light-compression thigh shaper and a seam-free bodysuit in your drawer, you’ll have the right piece ready for nearly any dress you own.
Shop Whitney’s favorite plus size finds on her Amazon storefront. Follow @thatgirlwhitney on Instagram for more plus size outfit ideas.
