Why Do My Swim Trunks Ride Up? Fixes for Boardshorts and Trunks

Quick answer

Swim trunks ride up most often because of poor fit (too loose or too tight), a lack of a secure waist closure, or a fabric that doesn't hold its shape when wet. Fix it by choosing boardshorts with a drawstring and a snug-but-not-tight fit, and look for a contoured leg opening that moves with you.

Symptom: Constant Wedgies and Tugging

You're paddling out, standing up on your board, or just walking along the shore, and you feel that familiar tug—your swim trunks are riding up into places they shouldn't. This isn't just uncomfortable; it can ruin your focus and make you self-conscious. The good news is that the fix is usually straightforward once you identify the root cause.

Likely Cause: Fit, Fabric, or Design

The most common culprit is a poor fit. Trunks that are too loose will sag when wet and then bunch up as you move. Trunks that are too tight can also ride up because the fabric is strained and pulls against your skin. Next, consider the fabric: lightweight, slick materials like nylon or polyester can slide against your skin more easily than a cotton blend. Finally, look at the leg opening design—a wide, straight cut offers less resistance than a tapered or contoured leg opening that grips your thigh.

Corrective Action: Adjust Fit and Choose the Right Pair

First, check your waist size. Your trunks should sit comfortably at your natural waist or hips without needing constant cinching. Use the drawstring to secure them, but don't rely on it to fix a size that's too large. If your current pair rides up, try a size down or a different cut. For boardshorts, look for a pair with a longer inseam (around 18-20 inches) and a contoured leg opening—this gives the fabric more weight and a better grip. If you prefer a shorter inseam, make sure the leg opening is snug but not restrictive.

When to Stop and Choose Another Option

If you've tried adjusting the fit and the problem persists, it may be time to consider a different style. Some trunks are simply designed for lounging rather than active water use. For surfing or swimming, a dedicated boardshort with a secure drawstring and a performance fabric that dries quickly and holds its shape is a better choice. If you're still struggling, look for trunks with an inner mesh lining or a built-in brief, which can provide extra support and prevent fabric from bunching.

Diagnosis: Swim Trunks Riding Up

• Symptom: Your swim trunks bunch up between your legs or ride up your waist after a few minutes of activity. This is a common issue that usually has a simple fix.
• Likely Cause: Poor fit (too loose or too tight), a slick fabric, or a wide leg opening that doesn't grip your thigh. Check your waist size and the leg opening design first.
• Corrective Action: Adjust the drawstring, try a size down, or choose boardshorts with a longer inseam and a contoured leg opening. A snug fit with a secure closure is key.
• Stop or Choose Another Option: If adjustments don't work, switch to a performance boardshort with an inner mesh lining or a built-in brief. Some styles are better for active water use than others.

Product facts that help

• Men's Parillo Mod: The Men's Parillo Mod Boardshort from Volcom is built for time in the water and days on the shore. It's part of the Spring 2026 new arrivals and available in waist sizes 31 to 40. A boardshort designed for both water and shore activity means the fit and fabric are chosen to stay put during movement, reducing the chance of riding up. The range of waist sizes helps you find a snug fit.