Scrunch Bum Short Sizing: How to Get the Perfect Fit and Style

Quick Answer

For the perfect fit in scrunch bum shorts, prioritize a snug but comfortable waistband and a seamless lift in the glute area. Because the fabric stretches, choose your true size for a firm hold, or size up if you prefer a looser feel. Pair them with a high-waist top or a cropped hoodie to balance proportions and keep the focus on the scrunch detail.

Scrunch bum shorts have become a gym staple for a reason: the seam placement and stretchy fabric create a flattering silhouette while letting you move freely during squats, lunges, and everything in between. But getting the right size isn’t always obvious. A size too small can dig in, and a size too large can lose that sculpted effect. Understanding how they should fit and what to look for in the fabric and waistband is key to making them work for your body.

This guide walks you through the sizing and styling essentials for scrunch bum shorts. You’ll learn a simple step-by-step process to find your best fit, plus practical styling tips that work for the gym or a casual outing. Whether you’re ordering online or trying them on in store, these tips help you avoid common mistakes and get the comfort and look you want.

How Scrunch Bum Shorts Should Fit

Scrunch bum shorts are designed to fit like a second skin. The waistband should sit flat against your torso without gaping or pinching, and the leg openings should hug your thighs without leaving deep marks. The key is the scrunch seam: it should sit directly along your glute line, providing a subtle lift without being too tight. If the seam twists or shifts when you move, the shorts are either too small or not sitting correctly.

Because most scrunch bum shorts are made from a stretchy blend like nylon and spandex, they offer a wide range of motion. But that stretch means sizing can be forgiving—up to a point. A too-small pair will compress more than flatter, creating unwanted squeeze lines. A too-large pair will lose the scrunch effect and may slide down during workouts. Start with your true size based on the brand’s size chart, then adjust based on how you like your compression.

• Check that the waistband doesn't roll when you bend forward.
• The scrunch seam should stay centered, not drift to one side.

Understanding Fabric Stretch and Sizing

The stretch factor in scrunch bum shorts is what makes them so comfortable—but it also means you have to think about how much compression you want. Some shorts have a high spandex content, giving them a firm hold that can feel like shapewear. Others are more relaxed, with a softer stretch that’s better for lounging. When reading a product description, look for fabric percentages like cotton or spandex to gauge the feel.

A general rule: if the shorts are described as 'runs small' or have a lower spandex percentage, consider sizing up for comfort. If they’re a four-way stretch fabric with a snug fit, your true size usually works well. When in doubt, read customer reviews about sizing. And remember that the fit can change after washing—most scrunch bum shorts hold their shape well if you care for them properly, but always follow the care instructions.

• Check the fabric content—more spandex usually means more stretch and a tighter fit.
• Don’t size down for a 'more flattering' look; you’ll end up with discomfort and poor durability.

Styling Scrunch Bum Shorts for the Gym

Scrunch bum shorts are a versatile piece for your gym wardrobe. For a balanced look that’s functional, pair them with a sports bra or a fitted crop top that hits at the waist. This combination lets the shorts take center stage while keeping your silhouette streamlined. If you’re doing lower-body workouts, a top that doesn’t ride up is essential—look for one with a snug but comfortable fit.

For a more modest or layered look, throw on a cropped hoodie or a loose tank over your sports bra. This works well for cardio sessions where you want a little more coverage. And don’t forget about accessories—a simple necklace or bracelet can add personality without interfering with your workout. Just remember to remove jewelry before putting on or taking off tight shorts to avoid snagging.

• Use the scrunch detail as a focal point—avoid busy patterns on top that compete for attention.
• High-waist styles pair well with shorter tops; low-rise shorts work best with longer tops.

Common Sizing Mistakes to Avoid

One of the biggest mistakes is sizing down to get a 'more lifted' look. While it might seem like a smaller size will enhance the scrunch effect, it often leads to discomfort, visible lines, and a shorter lifespan for the garment. The scrunch is designed to work with your body’s natural shape, not against it. Choose a size that feels snug but not restrictive.

Another common error is ignoring the leg length. Scrunch bum shorts come in different inseams, from 2-inch to 6-inch or more. If you’re self-conscious about your thighs or prefer more coverage, go for a longer inseam. If you want more freedom of movement, shorter is fine. Always check the inseam measurement in the product details—it’s the difference between shorts that chafe and ones that feel like they’re made for you.

• Always measure your waist and hips and compare with the size chart—don’t rely on your usual clothing size.
• Consider trying two sizes if you’re between sizes; the stretch will tell you which is more comfortable.

Step-by-Step: Finding Your Perfect Scrunch Bum Short Fit

1. Measure yourself: Use a soft tape measure to get your waist and hip measurements. Wrap the tape around the narrowest part of your waist and the fullest part of your hips. Record these numbers. Checkpoint: Your waist and hip measurements should fall within the size chart range for the shorts you’re considering.
2. Check the size chart: Every brand has its own sizing, so always compare your measurements to the specific size chart for the scrunch bum shorts. Pay attention to inseam length as well as waist and hip. Checkpoint: If you’re between sizes, choose the larger size for a more comfortable fit, unless you prefer extra compression.
3. Consider the fabric stretch: Look at the fabric composition. If the shorts have a high spandex percentage, they’ll stretch more and hold their shape well. If they’re mostly cotton, they may have less ‘snap’ and could stretch out over time. Checkpoint: For a firm, lifting feel, go with a higher spandex content. For all-day comfort, a cotton blend might be better.
4. Try them on (or order two sizes): If possible, try on the shorts and move around—do squats, bend over, and walk. The shorts should stay in place and the scrunch seam should sit correctly. If ordering online, consider ordering two sizes and returning the one that doesn’t fit. Checkpoint: The waistband should not roll, and the leg openings should not dig in. If they do, size up.
5. Style them to suit your workout: Pair your scrunch bum shorts with the right top and accessories based on your activity. For yoga or lifting, a sports bra works. For cardio, add a cropped hoodie or a loose tank. Keep accessories minimal to avoid snags. Checkpoint: Your outfit should let you move freely without adjustments. If you’re constantly pulling up your shorts, they’re too big.

Related Products We Recommend

• Beyond Crop Top: The Beyond Seamless Crop Top has a four-way stretch fabric that moves with every twist, and the mesh detailing stands up to any workout. The mesh is durable and doesn’t rip easily, though you should avoid wearing jewelry or sharp objects when putting it on. Pairing scrunch bum shorts with a top that offers similar stretch ensures you can move freely without restriction. Plus, the mesh detailing adds a stylish touch that works well with the scrunch look.
• DEVOTEE CROPPED HOODIE: This cropped hoodie is perfect for gym wear and leisurewear, with a soft to the touch fabric. It’s ideal if you size up for a looser fit, and it’s made of 82.8% cotton and 17.2% spandex. If you want a more covered look or a layering piece for the gym, this cropped hoodie balances the fitted silhouette of scrunch bum shorts. The cotton-spandex blend provides enough stretch for movement while keeping you warm during warm-ups.
• Ultimate Zip Bra: The Ultimate Zip Bra is engineered for medium to high impact workouts, with a front zip opening, sweat-wicking fabric, and removable pads. It’s recommended to size up for a more comfy fit and supports up to 34DD bra size in XL. When wearing scrunch bum shorts for high-impact training, a supportive sports bra is non-negotiable. The zip front makes it easy to put on and take off, and the sweat-wicking fabric keeps you dry during intense sessions.

Finding the perfect fit in scrunch bum shorts comes down to understanding how they should feel, measuring yourself accurately, and not being tempted to size down for a temporary look. With the right size and a few styling tips, these shorts can become your go-to for workouts and beyond—giving you comfort, confidence, and a flattering silhouette every time.