# The 6 Best Running Underwear for Men on Amazon in 2026 > Best running underwear for men in 2026: chafe-resistant boxer briefs, a long-leg pair, mesh boxer briefs and a brief cut, all made of synthetic fabric. Guide: https://twelvetabs.com/reviews/best-running-underwear/ · Updated 2026-10-05 · By TwelveTabs · Search it live: https://twelvetabs.com/?q=running%20underwear&guide=best-running-underwear As an Amazon Associate we may earn from qualifying purchases. Our picks are independently researched, written by TwelveTabs AI and never sponsored. Prices and ratings change often: see the guide for today's. ## The top picks - **A long-leg cut with chafe-free seams:** Under Armour Performance Tech Long-Leg Boxerjock. A long-leg boxer brief in Performance Tech fabric with 4-way stretch, chafe-free seams, a no-roll hem and a tagless build, sold in sizes from X-Small to 4X-Large. - **A no-fly mesh boxer brief in a four-pack:** New Balance 5-Inch Mesh No-Fly Boxer Brief 4-Pack. A four-pack of 5-inch mesh boxer briefs in polyester and spandex, with a tagless, breathable build, an elastic waistband and a no-ride inseam, sold in sizes up to 5X-Large. - **Flatlock seams for long runs and travel:** ExOfficio Give-N-Go Sport 2.0 6-Inch Boxer Brief. A 6-inch boxer brief in a wear-friendly synthetic fabric with flatlock seams that reduce chafing, a wide waistband that retains its shape and a snug, lower-rise active fit. - **A mesh pouch that keeps things from shifting:** SAXX Multi-Sport Mesh Boxer Brief Fly 2-Pack. A two-pack of Multi-Sport Mesh boxer briefs with a fly and a slim fit, with a BallPark Pouch Pro that the listing says eliminates chafe, with breathable mesh panels. - **Breathable performance mesh for hot-weather training:** adidas Performance Boxer Brief 3-Pack. A three-pack of boxer briefs in breathable performance mesh with a mesh-lined pouch, stay-put legs, smooth stitching and a tagless waistband, listed in sizes small to XXL. - **A brief cut with no leg fabric to rub:** Reebok Low-Rise Athletic Briefs 5-Pack. A five-pack of low-rise briefs in soft stretch fabric with moisture-wicking technology, a contour pouch, a tagless design and a no-roll waistband. Our top pick is the **[Under Armour Performance Tech Long-Leg Boxerjock](https://twelvetabs.com/reviews/best-running-underwear/#pick-1)**, a long-leg boxer brief whose listing names chafe-free seams and a no-roll hem. Every pair in the Amazon results we read was cut for men, so this is a guide to running underwear for men. We read 120 Amazon search cards for “running underwear”, set aside sponsored repeats, compression shorts, thermal layers and cotton boxers with no athletic wording, and compared 10 finalists. The [New Balance](https://twelvetabs.com/reviews/best-running-underwear/#pick-2) is a four-pack of 5-inch mesh boxer briefs with no fly, and the [ExOfficio](https://twelvetabs.com/reviews/best-running-underwear/#pick-3) has flatlock seams and a wide waistband. The [SAXX](https://twelvetabs.com/reviews/best-running-underwear/#pick-4) adds a mesh pouch and a fly, the [adidas](https://twelvetabs.com/reviews/best-running-underwear/#pick-5) is a three-pack in performance mesh, and the [Reebok](https://twelvetabs.com/reviews/best-running-underwear/#pick-6) is a low-rise brief for runners who want no leg fabric. ## How to choose running underwear for men - **Skip cotton.** iRunFar says to avoid cotton, which absorbs moisture, holds sweat and can lead to chafing, and to look for polyester or nylon that stretch, wick sweat and dry quickly. Weeviews makes it the first of its five tips: never wear cotton underwear while running. Every pick here has a listing that names a performance, mesh or synthetic fabric. - **Seams and tags.** Runner's World looked for underwear without seams or tags to reduce chafing, and iRunFar says flatlock seams can help. The listing of the [Boxerjock](https://twelvetabs.com/reviews/best-running-underwear/#pick-1) names chafe-free seams, the [ExOfficio](https://twelvetabs.com/reviews/best-running-underwear/#pick-3) lists flatlock seams, and the [adidas](https://twelvetabs.com/reviews/best-running-underwear/#pick-5) lists smooth stitching and a tagless waistband. - **Cut.** iRunFar says briefs or boxer briefs suit runners whose shorts have no liner, and that boxer briefs for running fit snugly instead of loosely like regular boxers. It calls fly or no fly a personal choice: the [New Balance](https://twelvetabs.com/reviews/best-running-underwear/#pick-2) has no fly and the [SAXX](https://twelvetabs.com/reviews/best-running-underwear/#pick-4) has one. Weeviews suggests trying briefs too, which is the [Reebok](https://twelvetabs.com/reviews/best-running-underwear/#pick-6) cut. - **Fit and stretch.** Runner's World favored fabrics with more spandex or elastane for stretchy support. iRunFar says the fit should be snug but not restrictive, and that a wide waistband helps underwear stay put on a long run. Weeviews advises checking the fit before a long run, and Amazon's own summaries are mixed on sizing for the [adidas](https://twelvetabs.com/reviews/best-running-underwear/#pick-5), the [Reebok](https://twelvetabs.com/reviews/best-running-underwear/#pick-6) and the [ExOfficio](https://twelvetabs.com/reviews/best-running-underwear/#pick-3). ## Our picks in detail ### 1. Under Armour Performance Tech Long-Leg Boxerjock: best for a long-leg cut with chafe-free seams **Why it made the list** - Its listing names chafe-free seams and a no-roll hem. - The fabric is called Performance Tech, with 4-way stretch and a tagless build. - A performance waistband and a fitted, streamlined cut are listed. - Sizes run from X-Small to 4X-Large on the size menu. **Drawbacks** - The listing text we read gives neither the fabric blend nor the leg length in inches. - Amazon's own summary is mixed on the fabric, and some wearers find it very thin. **Skip it if** you want a shorter leg. The [New Balance](https://twelvetabs.com/reviews/best-running-underwear/#pick-2) is a 5-inch cut. ### 2. New Balance 5-Inch Mesh No-Fly Boxer Brief 4-Pack: best for a no-fly mesh boxer brief in a four-pack **Why it made the list** - Its listing names a polyester and spandex blend that is tagless and breathable. - An elastic waistband and a no-ride inseam are listed. - The listing calls the pairs fade resistant through washing and drying. - Four pairs come in one pack, in sizes from Small to 5X-Large. **Drawbacks** - There is no fly, so there is no quick opening on a trail stop, and iRunFar calls fly or no fly a personal choice. - Amazon's own summary is mixed on durability, with some reports of seams coming undone. **Skip it if** you want a fly. The [SAXX](https://twelvetabs.com/reviews/best-running-underwear/#pick-4) has one. ### 3. ExOfficio Give-N-Go Sport 2.0 6-Inch Boxer Brief: best for flatlock seams for long runs and travel **Why it made the list** - Its listing says flatlock seams reduce chafing and the wide waistband retains its shape. - The fabric is described as synthetic, with a snug active fit and a lower rise. - The listing pitches it for travel, with easy care and a claim that two pairs cover a trip. - iRunFar names the Give-N-Go 2.0 Sport Mesh 6-inch boxer brief from [ExOfficio](https://twelvetabs.com/reviews/best-running-underwear/#pick-3) its runner-up for men. **Drawbacks** - Amazon's own summary is mixed on fit, and some wearers say it is not true to size. - The listing text we read does not name the fabric blend. **Skip it if** you want a short 5-inch leg or a multi-pack. The [New Balance](https://twelvetabs.com/reviews/best-running-underwear/#pick-2) is both. ### 4. SAXX Multi-Sport Mesh Boxer Brief Fly 2-Pack: best for a mesh pouch that keeps things from shifting **Why it made the list** - Its listing describes Multi-Sport Mesh that keeps everything put and dry during sport. - A BallPark Pouch Pro with breathable mesh panels is listed to eliminate chafe. - The slim fit is form-fitting around the thighs. - It has a fly, which the [New Balance](https://twelvetabs.com/reviews/best-running-underwear/#pick-2) lacks. **Drawbacks** - Amazon's own summary is mixed on durability, with some reports of holes within weeks. - It is a two-pack, so you get fewer pairs than in the [adidas](https://twelvetabs.com/reviews/best-running-underwear/#pick-5) or the [Reebok](https://twelvetabs.com/reviews/best-running-underwear/#pick-6). **Skip it if** you want a roomier or standard-length leg. This cut is slim. ### 5. adidas Performance Boxer Brief 3-Pack: best for breathable performance mesh for hot-weather training **Why it made the list** - Its listing names performance mesh that circulates air for hot-weather training. - A mesh-lined pouch, stay-put legs and smooth stitching are listed. - The waistband is tagless and plush-soft. - A bullet gives sizes small to XXL, covering waists of 28 to 44 inches. **Drawbacks** - Amazon's own summary is mixed on sizing, and one critical snippet says a newer pack ran tight at the legs. - The page also offers a Long Boxer Brief style, so check which style you add to the cart. **Skip it if** you want a brief with no leg or a longer leg. The [Reebok](https://twelvetabs.com/reviews/best-running-underwear/#pick-6) has no leg and the [Boxerjock](https://twelvetabs.com/reviews/best-running-underwear/#pick-1) is long-leg. ### 6. Reebok Low-Rise Athletic Briefs 5-Pack: best for a brief cut with no leg fabric to rub **Why it made the list** - Its listing names moisture-wicking technology and quick-dry, breathable fabric. - A contour pouch is listed for support without chafing. - The waistband is no-roll and the seams are listed as durable. - Five pairs come in one pack, in a brief cut with no leg. **Drawbacks** - The size menu in the text we read runs only to X-Large. - Amazon's own summary is mixed on size and durability, with some reports of seams coming apart. **Skip it if** you want leg coverage, since a brief has none. The [New Balance](https://twelvetabs.com/reviews/best-running-underwear/#pick-2) has a 5-inch leg. ## What we left out, and why We read 120 search cards, 96 organic, and read the pages of 10 finalists. Four finalist links redirected on load to a sibling listing of the same pair, and we used the page Amazon served. We kept six and left out: - **New Balance Men's Performance Boxer Briefs.** Five listings with this title show one shared rating total, and the page does not say whether they are colors and packs of one pair or different styles, so we left it out rather than lean on a total that may not describe this pair. - **Under Armour Performance Tech Brief 6-Inch 3-Pack.** A second pair from the maker of the [Boxerjock](https://twelvetabs.com/reviews/best-running-underwear/#pick-1), doing its job, with a rating total shared across several listings of the same title. - **Hanes Performance Stretch Boxer Brief Pack.** A polyester boxer brief with the same selling points as the [adidas](https://twelvetabs.com/reviews/best-running-underwear/#pick-5). Hanes boxer briefs for everyday wear are in our [guide to underwear for men](https://twelvetabs.com/reviews/best-underwear-for-men/). - **PUMA 5-Pack Performance Boxer Briefs.** Another polyester and spandex boxer brief with the same pitch as the [adidas](https://twelvetabs.com/reviews/best-running-underwear/#pick-5) and the [New Balance](https://twelvetabs.com/reviews/best-running-underwear/#pick-2), so we kept one pick per job. Runner's World, iRunFar and Weeviews all review running underwear for women as well as men, but the finalists we read were all cut for men, so women's running underwear would need its own research. Runderwear's running briefs for men appear in the Amazon results but were not among the finalists, and iRunFar's top pick for men, the Patagonia Sender Boxer Brief, was not in the Amazon cards we read. ## Questions people ask ### Do you need special underwear for running? Not always. iRunFar says many runners now skip underwear because running shorts usually include a liner. For shorts without a liner, or for extra support and protection, it recommends briefs or boxer briefs. If you wear underwear, avoid cotton: Weeviews and iRunFar both say it holds sweat and can lead to chafing. ### Are boxer briefs or briefs better for running? It is a personal choice. iRunFar's picks are all boxer briefs, which fit snugly and cover the upper thigh, while Weeviews says briefs and jockstraps are worth a fair try. The [Reebok](https://twelvetabs.com/reviews/best-running-underwear/#pick-6) is the brief here, and the [Boxerjock](https://twelvetabs.com/reviews/best-running-underwear/#pick-1) is the longest boxer brief. ### What fabric is best for running underwear? Polyester or nylon with spandex. Runner's World found nylon and polyester wick moisture about equally well and favored blends with more spandex for stretch, and iRunFar lists polyester and nylon as the fabrics that stretch, wick and dry quickly. ### How should running underwear fit? Snug but not restrictive, so it does not ride up or sag. iRunFar suggests a wide waistband for a long run, and Weeviews says to check the fit before a long run. ### How did TwelveTabs choose these running underwear picks? TwelveTabs read the first two pages of Amazon results for “running underwear”, set aside sponsored repeats and listings that share one set of ratings, and read the pages of 10 finalists. We kept six synthetic-fabric underwear for men and checked the advice against iRunFar, Weeviews and Runner's World. AI wrote this guide from that research. To see what TwelveTabs picks today, run the search yourself with the button on this page. ## How we researched On October 5, 2026 we read 120 Amazon search cards for “running underwear”, 96 organic and 24 sponsored. AI compared them, set aside sponsored repeats, compression shorts, thermal layers, cotton or modal boxers and listings that share one set of ratings across styles, read the pages of 10 finalists and chose six synthetic underwear for men. AI wrote this guide from that research. Listings change: we read them on October 5, 2026, and a size, color or seller may differ today. Fabric and seam wording is the listing text as we read it, which the collector cut to about 200 characters per bullet. Every finalist was cut for men, and none of the top Google results for this topic was a Wirecutter page. ### Sources - [iRunFar: Best Running Underwear for Men](https://www.irunfar.com/best-running-underwear-for-men) - [Weeviews: Running Underwear for Men](https://www.weeviews.com/rundown/running-underwear-for-men) - [Runner's World: The Best Running Underwear](https://www.runnersworld.com/gear/a20862805/best-underwear-for-runners/)