Best S Mens Athletic Underwear in 2026
Daisy
Last Updated: Jul 19, 2026
Daisy
Last Updated: Jul 19, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Sarah chaqzhi | 5.05 | ✅ | ✅ | ✅ |
COTTON CLASSIC: Spun in premium cotton yarns for supreme breathability, Calvin Klein’s bestselling men’s underwear wicks away moisture to keep you cool and dry.
SUPPORT plus COMFORT: Featuring a functional fly and contoured pouch for a supportive fit, Calvin Klein’s mens boxer briefs have a soft, flexible logo waistband that stays put without too much compression and retains its shape, wear after wear.
SIGNATURE FIT: Designed with a full rise, a waist that sits the above hip, and a longer leg line that sits low on the thigh.
DESIGNED IN THE USA: Calvin Klein’s mens boxers are created by its NYC-based global design team using premium imported materials.
CARE: Machine wash cold, tumble dry low heat. We recommend hang drying your boxer briefs to extend the life of your garment.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
COTTON CLASSIC: Spun in premium cotton yarns for supreme breathability, Calvin Klein’s bestselling men’s underwear wicks away moisture to keep you cool and dry.
SUPPORT plus COMFORT: Featuring a functional fly and contoured pouch for a supportive fit, Calvin Klein’s mens boxer briefs have a soft, flexible logo waistband that stays put without too much compression and retains its shape, wear after wear.
SIGNATURE FIT: Designed with a full rise, a waist that sits the above hip, and a longer leg line that sits low on the thigh.
DESIGNED IN THE USA: Calvin Klein’s mens boxers are created by its NYC-based global design team using premium imported materials.
CARE: Machine wash cold, tumble dry low heat. We recommend hang drying your boxer briefs to extend the life of your garment.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
COTTON CLASSIC: Spun in premium cotton yarns for supreme breathability, Calvin Klein’s bestselling men’s underwear wicks away moisture to keep you cool and dry.
SUPPORT + COMFORT: Featuring a functional fly and contoured pouch for a supportive fit, Calvin Klein’s mens boxer briefs have a soft, flexible logo waistband that stays put without too much compression and retains its shape, wear after wear.
SIGNATURE FIT: Designed with a full rise, a waist that sits the above hip, and a longer leg line that sits low on the thigh.
DESIGNED IN THE USA: Calvin Klein’s mens boxers are created by its NYC-based global design team using premium imported materials.
CARE: Machine wash cold, tumble dry low heat. We recommend hang drying your boxer briefs to extend the life of your garment.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
COTTON CLASSIC: Spun in premium cotton yarns for supreme breathability, Calvin Klein’s bestselling men’s underwear wicks away moisture to keep you cool and dry.
SUPPORT + COMFORT: Featuring a functional fly and contoured pouch for a supportive fit, Calvin Klein’s mens boxer briefs have a soft, flexible logo waistband that stays put without too much compression and retains its shape, wear after wear.
SIGNATURE FIT: Designed with a full rise, a waist that sits the above hip, and a longer leg line that sits low on the thigh.
DESIGNED IN THE USA: Calvin Klein’s mens boxers are created by its NYC-based global design team using premium imported materials.
CARE: Machine wash cold, tumble dry low heat. We recommend hang drying your boxer briefs to extend the life of your garment.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Body modal underwear boxer briefs multipack featuring a body defining fit
Ultra soft hand micro modal fabric with added stretch for comfort
Luxurious drape
Soft and smooth waistband for additional all day comfort
Contour pouch flattens physique on bottom
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
SILKY SOFT MICROFIBER: The signature mix of fibers offers exceptional stretch, dries fast and wicks away moisture to keep you cool and dry
SUPPORT + COMFORT: Featuring a contoured pouch for a supportive fit, Calvin Klein’s men’s boxer briefs have a soft, flexible logo waistband that stays put without too much compression and retains its shape, wear after wear
SIGNATURE FIT: Designed with a full rise, a waistband that sits the above hip, and a longer leg that sits low on the thigh
DESIGNED IN THE USA: Calvin Klein’s men’s boxer briefs are created by its NYC-based global design team using premium imported materials
CARE: Machine wash cold, tumble dry low heat. We recommend hang drying your boxer briefs to extend the life of your garment
Comes in a convenient 3 Pack
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
SILKY SOFT MICROFIBER: The signature mix of fibers offers exceptional stretch, dries fast and wicks away moisture to keep you cool and dry.
SUPPORT + COMFORT: Featuring a functional fly and contoured pouch for a supportive fit, Calvin Klein’s mens boxer briefs have a soft, flexible logo waistband that stays put without too much compression and retains its shape, wear after wear.
SIGNATURE FIT: Designed with a full rise, a waist that sits the above hip, and a longer leg line that sits low on the thigh.
DESIGNED IN THE USA: Calvin Klein’s mens boxers are created by its NYC-based global design team using premium imported materials.
CARE: Machine wash cold, tumble dry low heat. We recommend hang drying your boxer briefs to extend the life of your garment.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| French Merchants | 6.74 | ✅ | ✅ | ✅ |
Calvin Klein Underwear engineered elastic waistband
Ultra soft and sleek, this essential Calvin Klein boxer brief is made with a modal stretch blend for a luxurious feel. Finished with Calvin Klein Underwear repeating logo waistband, a contoured pouch for smooth construction and seaming details for a silky bottom layer.
Calvin Klein Underwear engineered elastic waistband
Supportive contoured pouch, straight legs and seaming details
Add a ck modal trunk to complete the set
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
COTTON STRETCH: Spun in pure, premium cotton yarn with a hint of Spandex fibers, Calvin Klein’s signature men’s underwear wicks away moisture to keep you cool and dry.
SUPPORT plus COMFORT: Featuring a functional fly and contoured pouch for a supportive fit, Calvin Klein’s mens boxer briefs have a soft, flexible logo waistband that stays put without too much compression and retains its shape, wear after wear.
SIGNATURE FIT: Designed with a full rise, a waist that sits the above hip, and a longer leg line that sits low on the thigh.
DESIGNED IN THE USA: Calvin Klein’s mens boxers are created by its NYC-based global design team using premium imported materials.
CARE: Machine wash cold, tumble dry low heat. We recommend hang drying your boxer briefs to extend the life of your garment
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| FANS 2 FASHION | 6.97 | ❌ | ❌ | ❌ |
Basic boxer briefs crafted with stretch for enhanced mobility and comfort.
4 pairs per pack.
Elasticized logo waist.
Contoured pouch.
Polyester/elastane
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Modernized cut pouch with functional stitching
Turn back hem with functional stitch
Athletic logo waistband logo placed at center front
4-Way Stretch for maximum comfort
Made from a soft yet durable Cotton Blend for all day wear
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Calvin Klein | 11 |
We've carried out a comprehensive analysis of 77,327 reviews on mens athletic underwear, using our selection criteria to identify the best options in the men's fashion. Our findings reveal that most customers typically select mens athletic underwear priced around $58.77, with top brands including adidas, new balance, under armour, bamboo cool, 2(x)ist, amazon essentials, goodthreads, reebok and telaleo and puma
Our team of expert editors reviewed these high-quality items and handpicked the top 11 mens athletic underwear for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the men's fashion category. These include amazon.com, terramar sports inc, bamboocool-8, bamboo cool-3, bamboo cool-6, bamboo cool-9, bamboo cool-7, jmrdiscount and madam luxury and flag giant ship .
We are dedicated to assisting our users in finding the right briefs Products based on their needs, saving them considerable time when choosing which mens athletic underwear to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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