This guide covers shapewear specifically for jumpsuits and wide-leg trousers. For a full outfit-by-outfit shapewear pairing guide, see our Shapewear for Every Outfit: The No-Fail Pairing Guide.

What to Wear Under Jumpsuits & Wide-Leg Trousers: The Shapewear Guide

Jumpsuits and wide-leg trousers are two of the most flattering silhouettes in a woman's wardrobe — but they come with a specific shapewear challenge. Unlike dresses, where you can wear almost any style underneath, jumpsuits and trousers require shapewear that stays hidden, doesn't add bulk at the waist, and works with the garment's structure rather than against it. Here's exactly what to wear — and what to avoid.

The Jumpsuit Challenge

Jumpsuits are essentially a one-piece outfit, which means your shapewear needs to work within that structure. The main challenges:

• Bathroom trips — you need to remove or partially remove the jumpsuit, so shapewear with an open gusset is essential
• Visible waistband — a shapewear waistband that sits above the jumpsuit's waist seam will show through
• Torso length — if you're wearing a bodysuit under a jumpsuit, the torso lengths need to be compatible
• Bulk at the waist — too many layers at the waist creates a thick, unflattering silhouette

Best Shapewear for Under Jumpsuits

High-waist shaping brief (our top pick)
This is the most practical option for jumpsuits. It smooths the tummy and hips, sits below the jumpsuit's waist seam, and makes bathroom trips straightforward. Choose a style with a flat, seamless waistband that won't show through the fabric.

Shaping shorts (mid-thigh)
If your jumpsuit has wider legs, mid-thigh shaping shorts work well — they smooth the thighs and hips without adding bulk at the waist. Make sure the leg opening sits above the jumpsuit's leg opening to stay hidden.

What about a bodysuit under a jumpsuit?
Generally, avoid wearing a bodysuit under a jumpsuit — the double layer at the torso adds bulk and makes bathroom trips very complicated. The exception is a very loose, wide-leg jumpsuit where the extra layer won't be visible or restrictive.

Best Shapewear for Under Wide-Leg Trousers

Wide-leg trousers are more forgiving than jumpsuits because the top half is separate — giving you more shapewear options.

High-waist shaping brief
The go-to option. It smooths the tummy and hips, tucks neatly under the trouser waistband, and is completely invisible under wide-leg styles. Choose a style that sits at or just below your natural waist.

High-waist shaping shorts
If you want thigh smoothing as well, high-waist shaping shorts work well under wide-leg trousers. The wide leg of the trouser means the shorts won't be visible, even if they extend to mid-thigh.

Waist trainer (for structured trousers)
If you're wearing structured, high-waisted wide-leg trousers and want maximum waist definition, a waist trainer worn under the trousers can create a strong hourglass effect. This works best with firm, structured trouser fabrics. Browse our Waist Trainers collection for styles designed for all-day wear.

Fabric Matters: What to Wear Under Different Fabrics

• Lightweight fabrics (chiffon, satin, crepe): choose seamless, laser-cut shapewear to avoid visible lines
• Structured fabrics (ponte, denim, tailoring): standard shapewear works well — the fabric holds its own shape
• Knit or jersey fabrics: seamless shapewear is essential — any seam or edge will show through

Colour Matching

Always match your shapewear colour to your skin tone rather than your outfit colour. Nude or skin-tone shapewear is invisible under almost any fabric, including white and light-coloured trousers. Black shapewear can show through lighter fabrics, even under dark trousers. Read our Invisible Shapewear: How to Get a Smooth Silhouette With No VPL guide for more on avoiding visible lines.

Quick Reference Guide

Frequently Asked Questions

What shapewear can I wear under a jumpsuit without showing?

A high-waist shaping brief with a seamless, flat waistband is the most invisible option under a jumpsuit. It sits below the jumpsuit's waist seam, smooths the tummy and hips, and won't create bulk or visible lines. Make sure to choose a style with an open gusset for practical bathroom access. Our High Waist Tummy Control Underwear is our top pick for jumpsuits.

Can I wear a bodysuit under a jumpsuit?

Generally not recommended. A bodysuit under a jumpsuit creates a double layer at the torso that adds bulk and makes bathroom trips very complicated. The exception is a very loose, wide-leg jumpsuit in a thick fabric where the extra layer won't be visible. For most jumpsuits, a high-waist brief is a much more practical choice.

What is the best shapewear for wide-leg trousers?

A high-waist shaping brief or mid-thigh shaping shorts are both excellent under wide-leg trousers. The wide leg of the trouser means the shapewear won't be visible regardless of length, so you can choose based on how much coverage you want. If you want maximum waist definition, a waist trainer under structured wide-leg trousers creates a strong hourglass effect. Browse our full Shapewear collection for all options.

How do I stop shapewear from showing under wide-leg trousers?

Choose seamless or laser-cut shapewear in a nude or skin-tone colour. Make sure the waistband sits below the trouser waistband, and check that the leg openings are above the trouser hem. Under lightweight fabrics like crepe or satin, seamless shapewear is essential — any seam or edge will show through. Read our No-VPL guide for more tips.