Athletic underwear and sports underwear are the same product. Both describe underwear built with moisture-wicking fabric and a closer, more supportive fit than a standard cotton pair, made to hold up through a workout, a match, or a long day on your feet instead of just sitting in a drawer.
The real question isn't which term to search. It's what actually separates a good pair from the cotton ones already in your drawer. This guide gives you the honest answer: what to look for in fabric, fit, and construction, the best cuts for men and women, and how to choose based on the sport you play.
Are Athletic Underwear and Sports Underwear the Same Thing?
Yes. Both describe underwear made from moisture-wicking, stretch fabric, cut to move with your body during activity instead of sitting flat like a standard cotton pair. The one distinction worth knowing is between this and compression underwear, which comes down to fit, not fabric or category. We get into that difference further down.
What Actually Makes Underwear "Athletic"
Three things separate a real performance pair from a basic cotton one: fabric, fit, and construction.
Fabric comes first. Cotton holds onto sweat and stays wet, which is exactly what performance fabric is built to avoid. Polyester, nylon, and spandex blends pull moisture away from your skin instead of holding it there, so you stay drier through a workout, a match, or a long day on your feet. We broke down how wicking fabric actually works, fabric by fabric, in our guide to the best moisture-wicking underwear, so we won't repeat it all here.
Fit is the second piece. A good pair sits closer to the body than a standard one, with less loose fabric that can bunch up or shift during quick movement. A snug, supportive fit matters more the faster you're moving.
Construction rounds it out. Look for flat seams instead of raised ones, a supportive waistband that won't roll or dig in, and, on men's styles, a pouch built to hold everything in place instead of shifting mid-activity.
Types of Athletic Underwear: Briefs, Boxer Briefs, Trunks, and Compression
These come in a handful of cuts, and the right one depends on personal preference more than any hard rule.
● Briefs: full coverage, minimal fabric, a common pick for support without extra material bunching between the thighs.
● Athletic boxer briefs: mid-thigh length, the most popular cut for men because they cut down on chafing between the legs while still offering support.
● Trunks: shorter than a boxer brief, longer than a brief, a middle-ground option a lot of men land on once they've tried both.
● Compression underwear: a snugger fit than a standard athletic pair, built to hold muscles in place during high-impact movement.
If you're trying to decide between a regular athletic fit and a compression fit, we cover the fit and support differences in detail in our compression vs. regular underwear guide.
Best Athletic Underwear for Men
Sports underwear for men comes down to three things: the fabric blend, the leg length, and the pouch.
A longer leg on athletic boxer briefs helps prevent skin-on-skin chafing during activities with a lot of lateral movement, like running, court sports, or a hard gym session. A supportive pouch keeps everything in place instead of shifting mid-workout, which matters more than most men expect until they've gone without it. And athletic support underwear built with a poly-spandex blend and flat seams will hold up through repeated washing far better than a cotton pair ever will.
The pair that checks all three boxes, fabric, leg length, and pouch support, tends to outperform anything picked up as an afterthought at a big box store.
Best Sports Underwear for Women
For women, the best pick usually comes down to coverage and stretch working together. A full-coverage boyshort or brief made from a wicking blend manages sweat better than a thong style during anything high-movement, simply because more fabric surface is doing the work.
Look for a wide waistband that won't dig in or roll down mid-activity, since a waistband that shifts is usually a sign the fit is off. Athletic panties built with flat-seam construction are worth prioritizing if you're wearing fitted leggings or shorts on top, since they avoid visible lines and cut down on rubbing at the same time. Women's athletic underwear in a cotton-free or mostly cotton-free blend will hold up better through a real workout than anything marketed as "soft" without naming the fabric.
Choosing the Right Pair Based on Your Sport
Not every activity puts the same demands on your underwear. A few examples:
● Running: prioritize a longer leg to prevent thigh chafing over long distances, and a lighter, quick-drying fabric since you'll be out there longer than most other activities.
● Gym and weight training: prioritize a supportive pouch or compression fit that stays in place during heavier, more static movement.
● Racquet sports like pickleball and tennis: prioritize flat seams and a fabric that dries fast between points, since these sports involve constant stop-and-start movement over a long match. We wrote a full breakdown of what to wear on the court in our guide to what to wear to play pickleball and our guide to what to wear to play tennis, both of which go deeper into the layer that sits underneath your shorts.
The sport matters less than the pattern behind it. The more your activity involves quick direction changes and long stretches on your feet, the more a good pair pays for itself.
What to Look for in Performance Underwear
A short checklist before you buy:
● A named fabric blend on the tag instead of the word "breathable" by itself
● Flat seams instead of raised ones
● A snug, supportive fit without feeling restrictive
● A waistband that stays put during movement
● A leg length that matches your activity, longer for anything with a lot of lateral motion
A pair that checks every box on this list will hold up through repeated wear far longer than one bought on looks alone.
Frequently Asked Questions
Is athletic underwear different from regular underwear?
Yes. It uses moisture-wicking synthetic fabric instead of cotton, and it's cut closer to the body with flat seams to reduce chafing during movement. Regular cotton underwear is built for comfort at rest, not performance during activity.
What is the best athletic underwear for men?
It combines a poly-spandex blend, flat seams, and a supportive pouch. Boxer briefs in the mid-thigh length are the most common pick because they cut down on chafing while still offering support.
Do women need special sports underwear?
Not strictly, but it makes a real difference. A wicking fabric with a wide, no-dig waistband handles sweat and movement better than standard cotton styles, especially during longer or higher-intensity activity.
Is athletic underwear the same as compression underwear?
Not quite. One refers to the fabric and general fit built for movement. Compression underwear is a snugger version of that, built to hold muscles in place. Our compression vs. regular underwear guide breaks down which one fits your body and your sport.
Whether you found this page searching for athletic underwear, sports underwear, or something more specific, the goal is the same: a pair doing its job so you can stop thinking about it mid-match. If you play pickleball, our men's and women's performance underwear is built around exactly the checklist above, made to keep you dry and chafe-free from the first serve to the last point.
