The SPANX Guide to Shapewear Bodysuits: Sizing, Styling, and More

Picture this: it’s 7:30 a.m. and you’ve got a million things on your plate—a meeting, a coffee spill, and maybe, just maybe, an outfit that doesn’t quite hit the mark. Enter shapewear bodysuits: the unsung heroes of our wardrobe wars. 

The right shapewear bodysuit makes you feel fabulous without feeling pinched or squeezed. Whether you’re aiming for that sleek silhouette or need some extra support under your favorite jeans, these bodysuits have your back (literally and figuratively).

In this guide, we’ll cover everything you need to know about shapewear bodysuits—from styling tips to benefits and beyond. Let’s dive in.

What Is a Shapewear Bodysuit?

A shapewear bodysuit is essentially a form-fitting garment that combines the features of shapewear with the structure of a bodysuit. Think of it as a blend between a slimming undergarment and a sleek one-piece outfit. It smooths out your silhouette, providing compression and support to enhance your natural figure—all while staying comfortably in place.

Bodysuits can come in various styles, from those that cover just your torso to full-body versions that include legs (more on that later). They often feature adjustable straps and hook-and-eye closures to tailor the fit to your needs.

4 Types of Shapewear Bodysuits

Let’s do a quick rundown of four essential types of shapewear bodysuits. Each one offers a different level of coverage and shaping, so you can take your pick based on your outfit, occasion, or comfort needs.

1. Mid-Thigh Bodysuit

This bodysuit extends down to about mid-thigh, offering coverage and shaping for the torso and upper thighs. Mid-thigh bodysuits are great for smoothing out your waist, hips, and thighs while leaving your legs free. They’re ideal for wearing under skirts or dresses where you want a bit of control but don't need full leg coverage.

2. Thong Bodysuit

As the name suggests, this bodysuit features a thong back, meaning minimal booty coverage. It’s perfect for avoiding visible panty lines and for wearing under form-fitting clothes. Thong bodysuits provide shaping and support for your torso while keeping your back line discreet.

3. Panty Bodysuit

This style features a traditional panty bottom with full coverage at the rear. It’s a classic choice for everyday wear, offering coverage and support without the risk of visible panty lines. Panty bodysuits are versatile and can be worn under almost any outfit for a smooth, streamlined look.

4. Catsuit

A catsuit is a full-body bodysuit that covers your entire body from neck to ankles. It provides lightweight shaping to conceal lumps and bumps. SPANX catsuits are the ultimate solution for jumpsuits, maxis, and more, ensuring your style gets all the applause.

3 Benefits of Wearing a Shapewear Bodysuit

Looking for a reason to rock a shapewear bodysuit? We’ll give you three.

1. Flawless Fit

Shapewear bodysuits smooth out those pesky lumps and bumps, giving you a sleek silhouette that makes your clothes fit like a dream. It’s like having a personal stylist that makes you look photoshoot-ready without the extra effort.

2. Comfort Meets Support

Shapewear bodysuits aren’t just about looking good—they’re about feeling good too. They offer gentle support that helps with posture and keeps you comfy all day. Perfect for long work days or nights out when you need to stay chic without sacrificing comfort.

3. Outfit Game Changer

Shapewear bodysuits are your wardrobe’s new best friend. Whether you’re rocking a bodycon dress, a high-waisted skirt, or just need a bit of a booty lift under your favorite jeans, these bodysuits have your back (and your front and sides). They’re versatile enough to wear under pretty much anything and even make loungewear look effortlessly cool.

Are You Supposed to Wear Anything Under a Shapewear Bodysuit?

Nope—not usually. Shapewear bodysuits are designed to be worn on their own. Adding another layer can make things feel bulky or awkward, and who needs that?

Worried about when nature calls? SPANX shapewear bodysuits come with handy features like Easy Access Gussets for quick bathroom access.

But what about bras? Bodysuits with open-bust design feature an open section where your bust area is, meaning they don’t provide any built-in cup support. On the other hand, some bodysuits have built-in bras. 

So, if you want flexibility and control over your bust support, go for an open-bust bodysuit. If you’re looking for simplicity and convenience, choose one with a built-in bra.

Occasions to Wear a Shapewear Bodysuit

A shapewear bodysuit can help you nail any occasion with confidence—here are a few ideas.

Date Night

Don’t let a wardrobe malfunction ruin the romantic vibes. Slip into a shapewear bodysuit under your date night outfit so you can enjoy the banter rather than fidgeting with your outfit.

Wedding Season

Whether you’re a bridesmaid or just attending, a shapewear bodysuit can help you feel confident and comfortable in your dress. Say goodbye to pesky panty lines and hello to a sleek silhouette for all those dance floor moves.

Workday Wonders

Long day at the office? A shapewear bodysuit under your work attire keeps things smooth and supported, so you can focus on crushing deadlines and not on adjusting your outfit every five minutes.

SPANX Has a Bodysuit for Every Body

SPANX bodysuits are built to be your most comfortable everyday essential. They’re like that friend who always knows exactly what to wear to make you look effortlessly put-together, whether you're prepping for a night on the town or tackling a workday. No more wardrobe worries or awkward outfit adjustments—just smooth, confident vibes from dawn till dusk.

Check out the full collection of SPANX shapewear bodysuits and see for yourself why women are obsessed.