Why Does My Underwear Ride Up? Causes and Simple Fixes

Quick Answer

Underwear rides up primarily because of a poor fit, slippery or non-breathable fabric, or a cut that doesn't match your body's shape. To stop it, choose underwear with a secure waistband, full-coverage gusset, and breathable materials like TENCEL™. For specific issues, try a different style—like a low-mid rise thong if your current thong shifts, or a seamless option if pantylines are your concern.

Few things are as distracting as underwear that constantly bunches or rides up. Whether you're at work, at the gym, or just running errands, that constant need to adjust can ruin your day. But the problem isn't just about discomfort—it can also cause chafing and visible lines under your clothes.

The good news? Most causes of riding up are easy to fix once you understand what's going on. In this guide, we'll break down the common reasons underwear shifts and offer practical solutions, including which features to look for and when it's time to switch styles.

Common Causes of Underwear Riding Up

The most frequent culprit is a poor fit. If your underwear is too big, the fabric has excess room to move and bunch. If it's too small, the elastic can dig in and cause the garment to shift as you move. Always check the size chart and measure yourself regularly, as body shape changes can affect fit.

Fabric also plays a huge role. Slippery synthetic materials like nylon or polyester have less grip against your skin and outer clothing, making them more prone to sliding. Non-breathable fabrics trap moisture, which increases friction and can cause the underwear to cling and move. Natural, breathable fibers like TENCEL™ derived from trees offer a better balance of softness and staying power.

The cut of the underwear matters too. Some styles simply don't suit certain body shapes. For instance, a high-cut brief might not stay put if you have a straighter hip line, while a thong with a narrow gusset might shift if it doesn't offer enough coverage. The rise—how high the underwear sits on your waist—also affects stability.

• Check your size: measure your waist and hips and compare to the brand's size chart.
• Look for full-coverage gussets: they prevent shifting and 'lip slips'.
• Avoid underwear with thin, non-elastic waistbands that roll down.

How to Stop Underwear from Riding Up

Start by reassessing your size. If you're between sizes, consider sizing down for a snugger fit, but make sure it's not so tight that it creates discomfort or marks. For many brands, a mid-rise thong offers a secure fit without digging in, especially if it features a cuffed waistband that stays put.

Choose underwear made from breathable, slightly textured fabrics. TENCEL™ fibers are known for their softness and moisture-wicking properties, which reduce friction and help the underwear stay in place. Also, look for designs with a wide or elasticated waistband that holds its shape throughout the day.

Consider the style. If your thong rides up, try one with a wider gusset and a lower rise, like a Low Profile Thong. If briefs bunch, a seamless low-mid rise thong might eliminate the problem entirely by removing extra fabric and seams that cause shifting.

• When trying a new style, wear it at home for a few hours to test comfort and fit.
• Rotate your underwear to avoid overstretching the elastic.
• If your underwear still rides up after trying these fixes, it may be time to switch to a different cut.

When to Choose a Different Underwear Style

Sometimes the fix isn't about size or fabric—it's about the cut. If you've tried multiple sizes and fabrics but still struggle with riding up, your body shape might not be compatible with that particular style. For example, a classic thong might not work for everyone, but a low-profile thong with a lower rise and full-coverage gusset could be the solution.

Similarly, if you experience bunching with briefs, a seamless thong might be a better option because it eliminates excess fabric and seams that can gather. The key is to experiment with different cuts and rise heights to find what works best for your body.

• Pay attention to where the underwear sits on your hips—mid-rise styles often stay put better than high-rise or low-rise.
• If you're between sizes, consider ordering two sizes to compare the fit at home.

Diagnosis: Why Your Underwear Rides Up

• Symptom: Underwear shifts, bunches, or rides up during the day, causing discomfort and the need for frequent adjustment. Identify when it happens—all day or only during certain activities?
• Likely Cause: Poor fit (too big or too small), slippery or non-breathable fabric, or a cut that doesn't match your body shape. Check your size and the fabric composition. If it's mostly synthetic, consider switching to breathable TENCEL™.
• Corrective Action: Try a different size or style. Look for features like a full-coverage gusset, elasticated waistband, and seamless construction. For thongs, a low-mid rise with a wider gusset may help. For briefs, a seamless thong could eliminate bunching. If adjusting size and fabric doesn't work, change the cut.
• Stop or Switch: If you've tried multiple sizes and styles and the problem persists, it's time to accept that this particular cut isn't for you and explore other options. Don't settle for discomfort—your underwear should feel like a second skin.

Underwear That Stays Put

• Low Profile Thong 3-Pack: A three-pack of our fan-fave Low Profile Thong. A super-sleek, low-mid rise staple without any unnecessary bells and whistles. Lined throughout for a body-hugging feel and secured with a flexible zig zag stitch, this smooth & supportive thong is an everyday essential. Made with super-soft, tree-derived TENCEL™ fibers known for their breathability. Our signature gusset is full coverage (no lip slips!) and knitted... The full-coverage gusset and flexible zig zag stitch prevent shifting and lip slips, directly addressing the 'thong rides up' problem.
• Seamless Low-Mid Rise Thong: Goodbye pantylines, hello breathability. Our Seamless Low-Mid Rise Thong is made with our tried-and-true cellulose fabrics—but in a lightweight, extra stretchy construction that looks (and feels) like a second skin. With a low-mid rise, bonded edges, and elasticated waist that holds its shape. Made with ultra-breathable TENCEL™ fibers derived from trees and featuring our signature full-coverage gusset knitted with... The bonded edges and elasticated waist hold their shape, preventing rolling and bunching, while the seamless design eliminates seams that can cause irritation and shifting.

Underwear riding up is never something you should just tolerate. By understanding the causes—fit, fabric, and cut—you can make informed choices that keep you comfortable and confident. Start with the basics: measure yourself, choose breathable materials, and don't be afraid to try a different style. Your body will thank you.