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 16%
BiteWear BiteWear BW2023108 Tuxedo Banana Jockstrap Color White
$21.00
$21.00
$25.00
Save 16%
BiteWear BiteWear BW2023110 Sweet Kiwi Briefs Color White
$21.00
$21.00
$25.00
Save 16%
BiteWear BiteWear BW2023103 Luminous Lime Trunks Color Green
$21.00
$21.00
$25.00
Save 16%
BiteWear BiteWear BW2023104 Sassy Peach Jockstrap Color Green
$21.00
$21.00
$25.00
Save 16%
BiteWear BiteWear BW2023106 Intense Melon Briefs Color Green
$21.00
$21.00
$25.00
Save 16%
BiteWear BiteWear BW2023107 Bright Kumquat Trunks Color Green
$21.00
$21.00
$25.00
Save 13%
BiteWear BiteWear BW2023108 Tuxedo Banana Jockstrap Color Green
$39.00
$39.00
$45.00
Save 16%
BiteWear BiteWear BW2023112 Dirty Plum Jockstrap Color Green
$21.00
$21.00
$25.00
Save 16%
BiteWear BiteWear BW2023107 Bright Kumquat Trunks Color Fuchsia
$21.00
$21.00
$25.00
Save 13%
BiteWear BiteWear BW2023108 Tuxedo Banana Jockstrap Color Fuchsia
$39.00
$39.00
$45.00
Save 16%
BiteWear BiteWear BW2023112 Dirty Plum Jockstrap Color Fuchsia
$21.00
$21.00
$25.00
Save 16%
BiteWear BiteWear BW2023110 Sweet Kiwi Briefs Color Black
$21.00
$21.00
$25.00
Save 34%
Xtremen Xtremen 91149 Destellante Jockstrap Color Rosewood
$27.00
$27.00
$41.00
Xtremen Xtremen 91149 Destellante Jockstrap Color Rosewood
$45.00
$45.00
Save 13%
Xtremen Xtremen 91151 Destellante Trunks Color Purple
$39.00
$39.00
$45.00
Save 34%
Xtremen Xtremen 91149 Destellante Jockstrap Color Gold
$27.00
$27.00
$41.00
Save 15%
Xtremen Xtremen 91162 Morelo Trunks Color Coral
$33.00
$33.00
$39.00
Save 15%
Xtremen Xtremen 91162 Morelo Trunks Color Black
$33.00
$33.00
$39.00
Save 34%
Clever Clever 1472 Heavenly Briefs Color White
$27.00
$27.00
$41.00
Save 35%
Clever Clever 1447 Fable Briefs Color Gray
$15.00
$15.00
$23.00
Save 15%
Clever Clever 1456 Grace Trunks Color Gray
$44.00
$44.00
$52.00
Save 35%
Xtremen Xtremen 91162 Morelo Trunks Color Turquoise
$15.00
$15.00
$23.00
Save 15%
Xtremen Xtremen 91169 Mesh Briefs Color Navy
$33.00
$33.00
$39.00
Save 34%
Xtremen Xtremen 91158 Capriati Trunks Color Dark Gray
$21.00
$21.00
$32.00
Save 34%
Xtremen Xtremen 91158 Capriati Trunks Color Candy
$21.00
$21.00
$32.00
Save 34%
Xtremen Xtremen 91158 Capriati Trunks Color Black
$21.00
$21.00
$32.00
Save 34%
Xtremen Xtremen 91169 Mesh Briefs Color Black
$23.00
$23.00
$35.00
Save 35%
Clever Clever 1512 Caspian Briefs Color White
$15.00
$15.00
$23.00
Save 35%
Clever Clever 1513 Caspian Jockstrap Color White
$15.00
$15.00
$23.00
Save 34%
Clever Clever 1532 Swirl Briefs Color White
$38.00
$38.00
$58.00