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.

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JUSTIN+SIMON JUSTIN+SIMON XSJ22 Cheek Briefs Color Wine
$21.25
$21.25
$25.00
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JUSTIN+SIMON JUSTIN+SIMON XSJ08 Classic Trunks Color Royal Blue
$19.84
$19.84
$23.34
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JUSTIN+SIMON JUSTIN+SIMON XSJ22 Cheek Briefs Color Purple
$21.25
$21.25
$25.00
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JUSTIN+SIMON JUSTIN+SIMON XSJ22 Cheek Briefs Color Pink
$21.25
$21.25
$25.00
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JUSTIN+SIMON JUSTIN+SIMON XSJ22 Cheek Briefs Color Opal Green
$21.25
$21.25
$25.00
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JUSTIN+SIMON JUSTIN+SIMON XSJ22 Cheek Briefs Color Navy
$21.25
$21.25
$25.00
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JUSTIN+SIMON JUSTIN+SIMON XSJ08 Classic Trunks Color Hot Pink
$19.84
$19.84
$23.34
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JUSTIN+SIMON JUSTIN+SIMON XSJ08 Classic Trunks Color Gray
$19.84
$19.84
$23.34
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JUSTIN+SIMON JUSTIN+SIMON XSJ08 Classic Trunks Color Coral
$19.84
$19.84
$23.34
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JUSTIN+SIMON JUSTIN+SIMON XSJ08 Classic Trunks Color Black
$19.84
$19.84
$23.34
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JUSTIN+SIMON JUSTIN+SIMON XSJ22 Cheek Briefs Color Black
$21.25
$21.25
$25.00
Clever Clever 0604-1 Explore Trunks Color Green
$24.75
$24.75
$0.00
Doreanse Doreanse 1403-PRN Persian Briefs Color Printed
$16.10
$16.10
$0.00
Doreanse Doreanse 1281-BLU Hang-loose Briefs Color Blue
$15.18
$15.18
$0.00
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Male Power Male Power 145-278 Galactic Mini Short Color Printed
$14.16
$14.16
$21.79
Xtremen Xtremen 70005 Plus
$8.00
$8.00
$0.00
Xtremen Xtremen 70004 Plus
$8.00
$8.00
$0.00
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ErgoWear ErgoWear EW1306 MAX SE Boxer Briefs Color Lilac
$33.52
$33.52
$39.44
Clever Clever 1134 Arcane Trunks Color Gray
$35.09
$35.09
$0.00
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Clever Clever 1136 Magical Trunks Color Dark Blue
$18.04
$18.04
$27.76
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JOR JOR 1722 Romeo Jockstrap Color White
$9.95
$9.95
$15.30
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JOR JOR 1726 Orion Bikini Color White
$9.95
$9.95
$15.30
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JOR JOR 1727 Orion Jockstrap Color White
$9.95
$9.95
$15.30
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JOR JOR 1741 Riders Briefs Color Royal
$20.63
$20.63
$31.74
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JOR JOR 1719 Match Jockstrap Color Red
$9.95
$9.95
$15.30
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JOR JOR 1731 Dante Jockstrap Color Purple
$9.95
$9.95
$15.30
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JOR JOR 1753 Party Briefs Color Printed
$20.63
$20.63
$31.74
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JOR JOR 1733 Celtic Bikini Color Pink
$16.75
$16.75
$25.77
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JOR JOR 1731 Dante Jockstrap Color Green
$16.75
$16.75
$25.77
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JOR JOR 1750 Rocco Bikini Color Green
$9.95
$9.95
$15.30