What you wear underneath is a reflection of how you feel on the outside.

Men's Underwear

What you wear underneath is a reflection of how you feel on the outside.

What you wear underneath is a reflection of how you feel on the outside.

Of course, your mood changes every day, so that's why DownUnder Apparel makes sure we have a huge variety of styles of Men's underwear and Men's sleepwear to fit any mood you're in! Find men's briefs, boxer briefs, boxers, trunks, thongs, jockstraps, and unique sexy underwear from the top brands.

Save 33%
HAWAI HAWAI 42327 Microfiber Briefs Color Blue
Regular Price
$16.00
Sale Price
$16.00
Regular Price
$24.00
Unit Price
per 
Save 33%
HAWAI HAWAI 42326 Microfiber Boxer Briefs Color Black
Regular Price
$16.00
Sale Price
$16.00
Regular Price
$24.00
Unit Price
per 
HAWAI HAWAI 42337 Microfiber Jockstrap Color Black
Regular Price
$8.00
Sale Price
$8.00
Regular Price
$0.00
Unit Price
per 
HAWAI HAWAI 42344 Microfiber Trunks Color Black
Regular Price
$38.00
Sale Price
$38.00
Regular Price
$0.00
Unit Price
per 
Save 33%
HAWAI HAWAI 42318 Microfiber Trunks Color Animal Print
Regular Price
$16.00
Sale Price
$16.00
Regular Price
$24.00
Unit Price
per 
Save 33%
HAWAI HAWAI 42319 Microfiber Briefs Color Animal Print
Regular Price
$16.00
Sale Price
$16.00
Regular Price
$24.00
Unit Price
per 
Save 33%
HAWAI HAWAI 42346 Microfiber Jockstrap Color Animal Print
Regular Price
$16.00
Sale Price
$16.00
Regular Price
$24.00
Unit Price
per 
Save 33%
PLURAL PLURAL PL004 Briefs Color Pink
Regular Price
$16.00
Sale Price
$16.00
Regular Price
$24.00
Unit Price
per 
Save 33%
PLURAL PLURAL PL006 Briefs Color Mint Green
Regular Price
$16.00
Sale Price
$16.00
Regular Price
$24.00
Unit Price
per 
Save 33%
PLURAL PLURAL PL004 Briefs Color Black
Regular Price
$16.00
Sale Price
$16.00
Regular Price
$24.00
Unit Price
per 
Save 33%
PLURAL PLURAL PL006 Briefs Color Black
Regular Price
$16.00
Sale Price
$16.00
Regular Price
$24.00
Unit Price
per 
Save 35%
Clever Clever 1313 Hunch Briefs Color White
Regular Price
$28.00
Sale Price
$28.00
Regular Price
$43.00
Unit Price
per 
Save 33%
Clever Clever 1314 Hunch Jockstrap Color White
Regular Price
$16.00
Sale Price
$16.00
Regular Price
$24.00
Unit Price
per 
Save 33%
Clever Clever 1316 Urge Briefs Color White
Regular Price
$16.00
Sale Price
$16.00
Regular Price
$24.00
Unit Price
per 
Save 35%
Clever Clever 1317 Urge Jockstrap Color White
Regular Price
$30.00
Sale Price
$30.00
Regular Price
$46.00
Unit Price
per 
Clever Clever 1304 Primary Trunks Color Petrol Blue
Regular Price
$61.00
Sale Price
$61.00
Regular Price
$0.00
Unit Price
per 
Clever Clever 1305 Primary Bikini Color Petrol Blue
Regular Price
$48.00
Sale Price
$48.00
Regular Price
$0.00
Unit Price
per 
Clever Clever 1306 Tribe Trunks Color Green
Regular Price
$61.00
Sale Price
$61.00
Regular Price
$0.00
Unit Price
per 
Clever Clever 1307 Tribe Bikini Color Green
Regular Price
$58.00
Sale Price
$58.00
Regular Price
$0.00
Unit Price
per 
Save 35%
Clever Clever 1308 Tribe Briefs Color Green
Regular Price
$26.00
Sale Price
$26.00
Regular Price
$40.00
Unit Price
per 
Save 36%
Clever Clever 1309 Basis Trunks Color Green
Regular Price
$36.00
Sale Price
$36.00
Regular Price
$56.00
Unit Price
per 
Save 35%
Clever Clever 1310 Basis Briefs Color Green
Regular Price
$30.00
Sale Price
$30.00
Regular Price
$46.00
Unit Price
per 
Clever Clever 1309 Basis Trunks Color Dark Blue
Regular Price
$61.00
Sale Price
$61.00
Regular Price
$0.00
Unit Price
per 
Clever Clever 1304 Primary Trunks Color Blue
Regular Price
$61.00
Sale Price
$61.00
Regular Price
$0.00
Unit Price
per 
Save 33%
Clever Clever 1312 Hunch Trunks Color Black
Regular Price
$16.00
Sale Price
$16.00
Regular Price
$24.00
Unit Price
per 
Save 35%
Clever Clever 1313 Hunch Briefs Color Black
Regular Price
$28.00
Sale Price
$28.00
Regular Price
$43.00
Unit Price
per 
Save 35%
Clever Clever 1316 Urge Briefs Color Black
Regular Price
$28.00
Sale Price
$28.00
Regular Price
$43.00
Unit Price
per 
Save 35%
Clever Clever 1317 Urge Jockstrap Color Black
Regular Price
$30.00
Sale Price
$30.00
Regular Price
$46.00
Unit Price
per 
Save 36%
Clever Clever 1306 Tribe Trunks Color Beige
Regular Price
$36.00
Sale Price
$36.00
Regular Price
$56.00
Unit Price
per 
Save 33%
Clever Clever 1307 Tribe Bikini Color Beige
Regular Price
$16.00
Sale Price
$16.00
Regular Price
$24.00
Unit Price
per