Best S Mens Underwear in 2025

Daisy
Last Updated: Nov 3, 2025

At a Glance: Our Top Picks for S Mens Underwear

UnderGents Men's Brief Underwear - Underwear Comfort For Men (no whitey tightie) (Navy Blue Size Medium)
#TOP1
Undergents Men's Brief Underwear - Underwear Comfort For
9.6
PM SCORE
UnderGents Men's Brief Underwear - Underwear Comfort For Men (no whitey tightie) (SkullsBones Size XL)
#TOP2
Undergents Men's Brief Underwear - Underwear Comfort For
9.4
PM SCORE
UnderGents Men's Brief Underwear - Underwear Comfort For Men (no whitey tightie) (SkullsBones Size 3XL)
#TOP3
Undergents Men's Brief Underwear - Underwear Comfort For
9.4
PM SCORE

* 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.

Summary of the Best S Mens Underwear of 2025

Undergents Men's Brief Underwear - Underwear Comfort For Men (No Whitey Tightie) (Navy Blue Size Medium)

UNDERGENTS
UG-BF-NAVY BLUE-MEDIUM
3.94 X 1.38 X 7.48 Inches
0.18 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
UnderGents 9.72

Features

What Goes Underneath Is Important: Join Millions of Other Comfortable Men by Wearing UnderGents. Feel the limitless CloudSoft comfort and style! We believe you will agree that UnderGents men's underwear are the most comfortable underwear you have ever worn, and you will be inspired every day, hence our flagship styles carry the Inspirato name. Finally, comfort underneath is possible for every man.

Cloudsoft Fabric: If You Want To Wear Soft Comfort Underneath, Then Our Ultra Soft, Comfortable, Cloudsoft Fabric Is Made for You. This Breathable Plant Based Micro Modal Is Incredibly Cool and Light Against Your Skin. This Exceptional Material Is Great for All Day Working, Lounging, Exercising, And Realizing Every Adventure Is Possible. Ultra Soft Cloudsoft Micro Modal Does NOT Trap Perspiration and Stink So You’ll Never Feel Sweaty and Sticky.

Sized for Men's Comfort: Based on a man's waist size: XS 27-29; Small 30-32, Med. 33-35; Large 36-38, XL 39-42, 2XL 43-46, 3XL 47-50. No Bulky Fly (We Are Over The Top All Day Long, ha)

Multi Panel Vitruvian Design: This inspired multi-panel design insures a comfortable modern fit that moves with you, the way a man moves, while eliminating binding and pulling. A seamless seat for rear-end comfort in any position, contoured front pouch with enhanced package support keeps everything comfortably in place and looks great; inside-flat stitching insures comfort so there is no chafing, itching, or scratching; custom soft no-tag no-roll moisture wicking waistband for added comfort.

Cooling Breathable Moisture Wicking Microclimate: Our nature based CloudSoft micro modal fabric is multiple times softer & cooler than cotton or polyester. Unlike most underwear, made from those materials, UnderGents’ CloudSoft has incredible air permeability to keep you cool, dry, and fresh all day & night. No more swampy smelly hot box underwear. Remember, Polyester is a form of plastic, just like a garbage bag, so don’t wear garbage underwear, be comfortable in UnderGents!

Undergents Men's Brief Underwear - Underwear Comfort For Men (No Whitey Tightie) (Skullsbones Size Xl)

UNDERGENTS
UG-BF-SKULLS-XL
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
UnderGents 9.73

Features

What Goes Underneath Is Important: Join Millions of Other Comfortable Men by Wearing UnderGents. Feel the limitless CloudSoft comfort and style! We believe you will agree that UnderGents men's underwear are the most comfortable underwear you have ever worn, and you will be inspired every day, hence our flagship styles carry the Inspirato name. Finally, comfort underneath is possible for every man.

Cloudsoft Fabric: If You Want To Wear Soft Comfort Underneath, Then Our Ultra Soft, Comfortable, Cloudsoft Fabric Is Made for You. This Breathable Plant Based Micro Modal Is Incredibly Cool and Light Against Your Skin. This Exceptional Material Is Great for All Day Working, Lounging, Exercising, And Realizing Every Adventure Is Possible. Ultra Soft Cloudsoft Micro Modal Does NOT Trap Perspiration and Stink So You’ll Never Feel Sweaty and Sticky.

Sized for Men's Comfort: Based on a man's waist size: XS 27-29; Small 30-32, Med. 33-35; Large 36-38, XL 39-42, 2XL 43-46, 3XL 47-50. No Bulky Fly (We Are Over The Top All Day Long, ha)

Multi Panel Vitruvian Design: This inspired multi-panel design insures a comfortable modern fit that moves with you, the way a man moves, while eliminating binding and pulling. A seamless seat for rear-end comfort in any position, contoured front pouch with enhanced package support keeps everything comfortably in place and looks great; inside-flat stitching insures comfort so there is no chafing, itching, or scratching; custom soft no-tag no-roll moisture wicking waistband for added comfort.

Cooling Breathable Moisture Wicking Microclimate: Our nature based CloudSoft micro modal fabric is multiple times softer & cooler than cotton or polyester. Unlike most underwear, made from those materials, UnderGents’ CloudSoft has incredible air permeability to keep you cool, dry, and fresh all day & night. No more swampy smelly hot box underwear. Remember, Polyester is a form of plastic, just like a garbage bag, so don’t wear garbage underwear, be comfortable in UnderGents!

Undergents Men's Brief Underwear - Underwear Comfort For Men (No Whitey Tightie) (Skullsbones Size 3Xl)

UNDERGENTS
UG-BF-SKULLS-3XL
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING

Features

What Goes Underneath Is Important: Join Millions of Other Comfortable Men by Wearing UnderGents. Feel the limitless CloudSoft comfort and style! We believe you will agree that UnderGents men's underwear are the most comfortable underwear you have ever worn, and you will be inspired every day, hence our flagship styles carry the Inspirato name. Finally, comfort underneath is possible for every man.

Cloudsoft Fabric: If You Want To Wear Soft Comfort Underneath, Then Our Ultra Soft, Comfortable, Cloudsoft Fabric Is Made for You. This Breathable Plant Based Micro Modal Is Incredibly Cool and Light Against Your Skin. This Exceptional Material Is Great for All Day Working, Lounging, Exercising, And Realizing Every Adventure Is Possible. Ultra Soft Cloudsoft Micro Modal Does NOT Trap Perspiration and Stink So You’ll Never Feel Sweaty and Sticky.

Sized for Men's Comfort: Based on a man's waist size: XS 27-29; Small 30-32, Med. 33-35; Large 36-38, XL 39-42, 2XL 43-46, 3XL 47-50. No Bulky Fly (We Are Over The Top All Day Long, ha)

Multi Panel Vitruvian Design: This inspired multi-panel design insures a comfortable modern fit that moves with you, the way a man moves, while eliminating binding and pulling. A seamless seat for rear-end comfort in any position, contoured front pouch with enhanced package support keeps everything comfortably in place and looks great; inside-flat stitching insures comfort so there is no chafing, itching, or scratching; custom soft no-tag no-roll moisture wicking waistband for added comfort.

Cooling Breathable Moisture Wicking Microclimate: Our nature based CloudSoft micro modal fabric is multiple times softer & cooler than cotton or polyester. Unlike most underwear, made from those materials, UnderGents’ CloudSoft has incredible air permeability to keep you cool, dry, and fresh all day & night. No more swampy smelly hot box underwear. Remember, Polyester is a form of plastic, just like a garbage bag, so don’t wear garbage underwear, be comfortable in UnderGents!

Undergents Men's Brief Underwear - Underwear Comfort For Men (No Whitey Tightie) (White Size 2Xl)

UNDERGENTS
UG-BF-WHITE-2XL
3.94 X 1.38 X 7.48 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
UnderGents 9.67

Features

What Goes Underneath Is Important: Join Millions of Other Comfortable Men by Wearing UnderGents. Feel the limitless CloudSoft comfort and style! We believe you will agree that UnderGents men's underwear are the most comfortable underwear you have ever worn, and you will be inspired every day, hence our flagship styles carry the Inspirato name. Finally, comfort underneath is possible for every man.

Cloudsoft Fabric: If You Want To Wear Soft Comfort Underneath, Then Our Ultra Soft, Comfortable, Cloudsoft Fabric Is Made for You. This Breathable Plant Based Micro Modal Is Incredibly Cool and Light Against Your Skin. This Exceptional Material Is Great for All Day Working, Lounging, Exercising, And Realizing Every Adventure Is Possible. Ultra Soft Cloudsoft Micro Modal Does NOT Trap Perspiration and Stink So You’ll Never Feel Sweaty and Sticky.

Sized for Men's Comfort: Based on a man's waist size: XS 27-29; Small 30-32, Med. 33-35; Large 36-38, XL 39-42, 2XL 43-46, 3XL 47-50. No Bulky Fly (We Are Over The Top All Day Long, ha)

Multi Panel Vitruvian Design: This inspired multi-panel design insures a comfortable modern fit that moves with you, the way a man moves, while eliminating binding and pulling. A seamless seat for rear-end comfort in any position, contoured front pouch with enhanced package support keeps everything comfortably in place and looks great; inside-flat stitching insures comfort so there is no chafing, itching, or scratching; custom soft no-tag no-roll moisture wicking waistband for added comfort.

Cooling Breathable Moisture Wicking Microclimate: Our nature based CloudSoft micro modal fabric is multiple times softer & cooler than cotton or polyester. Unlike most underwear, made from those materials, UnderGents’ CloudSoft has incredible air permeability to keep you cool, dry, and fresh all day & night. No more swampy smelly hot box underwear. Remember, Polyester is a form of plastic, just like a garbage bag, so don’t wear garbage underwear, be comfortable in UnderGents!

Undergents Men's Brief Underwear - Underwear Comfort For Men (No Whitey Tightie) (Camo, Size: Small)

UNDERGENTS
UG-BF-BROWNCAMO-SMALL
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
UnderGents 9.72

Features

What Goes Underneath Is Important: Join Millions of Other Comfortable Men by Wearing UnderGents. Feel the limitless CloudSoft comfort and style! We believe you will agree that UnderGents men's underwear are the most comfortable underwear you have ever worn, and you will be inspired every day, hence our flagship styles carry the Inspirato name. Finally, comfort underneath is possible for every man.

Cloudsoft Fabric: If You Want To Wear Soft Comfort Underneath, Then Our Ultra Soft, Comfortable, Cloudsoft Fabric Is Made for You. This Breathable Plant Based Micro Modal Is Incredibly Cool and Light Against Your Skin. This Exceptional Material Is Great for All Day Working, Lounging, Exercising, And Realizing Every Adventure Is Possible. Ultra Soft Cloudsoft Micro Modal Does NOT Trap Perspiration and Stink So You’ll Never Feel Sweaty and Sticky.

Sized for Men's Comfort: Based on a man's waist size: XS 27-29; Small 30-32, Med. 33-35; Large 36-38, XL 39-42, 2XL 43-46, 3XL 47-50. No Bulky Fly (We Are Over The Top All Day Long, ha)

Multi Panel Vitruvian Design: This inspired multi-panel design insures a comfortable modern fit that moves with you, the way a man moves, while eliminating binding and pulling. A seamless seat for rear-end comfort in any position, contoured front pouch with enhanced package support keeps everything comfortably in place and looks great; inside-flat stitching insures comfort so there is no chafing, itching, or scratching; custom soft no-tag no-roll moisture wicking waistband for added comfort.

Cooling Breathable Moisture Wicking Microclimate: Our nature based CloudSoft micro modal fabric is multiple times softer & cooler than cotton or polyester. Unlike most underwear, made from those materials, UnderGents’ CloudSoft has incredible air permeability to keep you cool, dry, and fresh all day & night. No more swampy smelly hot box underwear. Remember, Polyester is a form of plastic, just like a garbage bag, so don’t wear garbage underwear, be comfortable in UnderGents!

Undergents Men's Brief Underwear - Underwear Comfort For Men (No Whitey Tightie) (Red Size 3Xl)

UNDERGENTS
UG-BF-RED-3XL
3.94 X 1.38 X 7.48 Inches
0.22 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
UnderGents 9.67

Features

What Goes Underneath Is Important: Join Millions of Other Comfortable Men by Wearing UnderGents. Feel the limitless CloudSoft comfort and style! We believe you will agree that UnderGents men's underwear are the most comfortable underwear you have ever worn, and you will be inspired every day, hence our flagship styles carry the Inspirato name. Finally, comfort underneath is possible for every man.

Cloudsoft Fabric: If You Want To Wear Soft Comfort Underneath, Then Our Ultra Soft, Comfortable, Cloudsoft Fabric Is Made for You. This Breathable Plant Based Micro Modal Is Incredibly Cool and Light Against Your Skin. This Exceptional Material Is Great for All Day Working, Lounging, Exercising, And Realizing Every Adventure Is Possible. Ultra Soft Cloudsoft Micro Modal Does NOT Trap Perspiration and Stink So You’ll Never Feel Sweaty and Sticky.

Sized for Men's Comfort: Based on a man's waist size: XS 27-29; Small 30-32, Med. 33-35; Large 36-38, XL 39-42, 2XL 43-46, 3XL 47-50. No Bulky Fly (We Are Over The Top All Day Long, ha)

Multi Panel Vitruvian Design: This inspired multi-panel design insures a comfortable modern fit that moves with you, the way a man moves, while eliminating binding and pulling. A seamless seat for rear-end comfort in any position, contoured front pouch with enhanced package support keeps everything comfortably in place and looks great; inside-flat stitching insures comfort so there is no chafing, itching, or scratching; custom soft no-tag no-roll moisture wicking waistband for added comfort.

Cooling Breathable Moisture Wicking Microclimate: Our nature based CloudSoft micro modal fabric is multiple times softer & cooler than cotton or polyester. Unlike most underwear, made from those materials, UnderGents’ CloudSoft has incredible air permeability to keep you cool, dry, and fresh all day & night. No more swampy smelly hot box underwear. Remember, Polyester is a form of plastic, just like a garbage bag, so don’t wear garbage underwear, be comfortable in UnderGents!

Undergents Men's Brief Underwear With Cloudsoft Cooling Air Modal Fabric (Comfort Underneath: Battlegrey Size Xl)

UNDERGENTS
UG-BF-BATTLEGREY-XL
3.94 X 1.38 X 7.48 Inches
0.20 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
UnderGents 9.67

Features

What Goes Underneath Is Important: Join Millions of Other Comfortable Men by Wearing UnderGents. Feel the limitless CloudSoft comfort and style! We believe you will agree that UnderGents men's underwear are the most comfortable underwear you have ever worn, and you will be inspired every day, hence our flagship styles carry the Inspirato name. Finally, comfort underneath is possible for every man.

Cloudsoft Fabric: If You Want To Wear Soft Comfort Underneath, Then Our Ultra Soft, Comfortable, Cloudsoft Fabric Is Made for You. This Breathable Plant Based Micro Modal Is Incredibly Cool and Light Against Your Skin. This Exceptional Material Is Great for All Day Working, Lounging, Exercising, And Realizing Every Adventure Is Possible. Ultra Soft Cloudsoft Micro Modal Does NOT Trap Perspiration and Stink So You’ll Never Feel Sweaty and Sticky.

Sized for Men's Comfort: Based on a man's waist size: XS 27-29; Small 30-32, Med. 33-35; Large 36-38, XL 39-42, 2XL 43-46, 3XL 47-50. No Bulky Fly (We Are Over The Top All Day Long, ha)

Multi Panel Vitruvian Design: This inspired multi-panel design insures a comfortable modern fit that moves with you, the way a man moves, while eliminating binding and pulling. A seamless seat for rear-end comfort in any position, contoured front pouch with enhanced package support keeps everything comfortably in place and looks great; inside-flat stitching insures comfort so there is no chafing, itching, or scratching; custom soft no-tag no-roll moisture wicking waistband for added comfort.

Cooling Breathable Moisture Wicking Microclimate: Our nature based CloudSoft micro modal fabric is multiple times softer & cooler than cotton or polyester. Unlike most underwear, made from those materials, UnderGents’ CloudSoft has incredible air permeability to keep you cool, dry, and fresh all day & night. No more swampy smelly hot box underwear. Remember, Polyester is a form of plastic, just like a garbage bag, so don’t wear garbage underwear, be comfortable in UnderGents!

Top 10 mens underwear Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Undergents 7

Top 10 mens underwear Brands Pie Chart


We've carried out a comprehensive analysis of 1,737 reviews on mens underwear, using our selection criteria to identify the best options in the men's fashion. Our findings reveal that most customers typically select mens underwear priced around $18.32, with top brands including amazon essentials, bamboo cool, wirarpa, hanes, fruit of the loom, gildan, new balance, reebok and thermajohn and devops

Our team of expert editors reviewed these high-quality items and handpicked the top 7 mens 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 bamboo cool-6, bamboo cool, wirarpa apparel shop, amazon.com, terramar sports inc, sema's fashion, bestprice forever, 1836 total commerce and devops and natural feelings official .

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 underwear to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.