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 15%
Xtremen Xtremen 91172 Printed Bikini Color Bows
$33.00
$33.00
$39.00
Save 36%
Xtremen Xtremen 91173 Printed Trunks Color Bows
$25.00
$25.00
$39.00
Save 16%
Xtremen Xtremen 91174 Tulle Mesh Bikini Color Black
$36.00
$36.00
$43.00
Save 15%
Xtremen Xtremen 91175 Microfiber Trunks Color Black
$33.00
$33.00
$39.00
Save 15%
Xtremen Xtremen 91177 Microfiber Bikini Color Black
$33.00
$33.00
$39.00
Save 16%
Clever Clever 1565 Destellos Trunks Color Silver
$42.00
$42.00
$50.00
Save 16%
Clever Clever 1568 Shine Trunks Color Pink
$54.00
$54.00
$64.00
Save 16%
Clever Clever 1565 Destellos Trunks Color Petrol Blue
$42.00
$42.00
$50.00
Save 16%
Clever Clever 1578 Coque Boxer Briefs Color Orange
$54.00
$54.00
$64.00
Save 15%
Clever Clever 1582 Ramo Trunks Color Grape
$45.00
$45.00
$53.00
Save 33%
Clever Clever 1583 Ramo Briefs Color Grape
$32.00
$32.00
$48.00
Save 15%
Xtremen Xtremen 91180 Microfiber Trunks Color Silver
$39.00
$39.00
$46.00
Save 34%
Xtremen Xtremen 91181 Microfiber Trunks Color Pink
$23.00
$23.00
$35.00
Save 15%
Xtremen Xtremen 91183 Microfiber Bikini Color Pink
$33.00
$33.00
$39.00
Save 34%
Xtremen Xtremen 91187 Tulle Mesh Bikini Color Pink
$23.00
$23.00
$35.00
Save 34%
Xtremen Xtremen 91188 Tulle Mesh Trunks Color Pink
$23.00
$23.00
$35.00
Save 15%
Xtremen Xtremen 91181 Microfiber Trunks Color Lilac
$33.00
$33.00
$39.00
Save 15%
Xtremen Xtremen 91183 Microfiber Bikini Color Lilac
$33.00
$33.00
$39.00
Save 34%
Xtremen Xtremen 91181 Microfiber Trunks Color Green
$23.00
$23.00
$35.00
Save 15%
Xtremen Xtremen 91183 Microfiber Bikini Color Green
$33.00
$33.00
$39.00
Save 34%
Xtremen Xtremen 91186 Mesh Bikini Color Green
$23.00
$23.00
$35.00
Save 59%
DownUnder Apparel Basic Boxer Briefs In Black, Navy Blue and White. Menswear. For The Boys!
DownUnder Apparel Classic Boxer Briefs Navy
$17.00
$17.00
$41.00
Save 59%
DownUnder Apparel Basic Boxer Briefs In Black, Navy Blue and White. Menswear. For The Boys!
DownUnder Apparel Classic Boxer Briefs Black
$17.00
$17.00
$41.00
Save 59%
DownUnder Apparel Basic Boxer Briefs In Black, Navy Blue and White. Menswear. For The Boys!
DownUnder Apparel Classic Boxer Briefs White
$17.00
$17.00
$41.00