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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Xtremen Xtremen 91125 Mesh Trunks Color Black
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
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Xtremen Xtremen 91135 Mesh Trunks Color Black
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
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Xtremen Xtremen 91138 Mesh Briefs Color Black
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
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Xtremen Xtremen 91140 Ultra-soft Trunks Color Black
Regular Price
$16.74
Sale Price
$16.74
Regular Price
$19.69
Unit Price
per 
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Xtremen Xtremen 91128 Snake print Jockstrap Color Red
Regular Price
$14.16
Sale Price
$14.16
Regular Price
$21.79
Unit Price
per 
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Xtremen Xtremen 91134 Mesh Jockstrap Color Red
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
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Xtremen Xtremen 91133 Mesh Briefs Color Petrol
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
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Xtremen Xtremen 91133 Mesh Briefs Color Fuchsia
Regular Price
$18.04
Sale Price
$18.04
Regular Price
$27.76
Unit Price
per 
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Roger Smuth Roger Smuth RS082 Jockstrap Color White
Regular Price
$27.10
Sale Price
$27.10
Regular Price
$41.69
Unit Price
per 
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Roger Smuth Roger Smuth RS080 Jockstrap Color Black
Regular Price
$27.10
Sale Price
$27.10
Regular Price
$41.69
Unit Price
per 
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Roger Smuth Roger Smuth RS082 Jockstrap Color Black
Regular Price
$27.10
Sale Price
$27.10
Regular Price
$41.69
Unit Price
per 
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Xtremen Xtremen 91187 Tulle Mesh Bikini Color Green
Regular Price
$20.48
Sale Price
$20.48
Regular Price
$24.09
Unit Price
per 
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Xtremen Xtremen 91188 Tulle Mesh Trunks Color Green
Regular Price
$14.16
Sale Price
$14.16
Regular Price
$21.79
Unit Price
per 
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Xtremen Xtremen 91186 Mesh Bikini Color Gray
Regular Price
$20.48
Sale Price
$20.48
Regular Price
$24.09
Unit Price
per 
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Xtremen Xtremen 91180 Microfiber Trunks Color Gold
Regular Price
$24.22
Sale Price
$24.22
Regular Price
$28.49
Unit Price
per 
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Xtremen Xtremen 91181 Microfiber Trunks Color Black
Regular Price
$20.48
Sale Price
$20.48
Regular Price
$24.09
Unit Price
per 
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Xtremen Xtremen 91183 Microfiber Bikini Color Black
Regular Price
$20.48
Sale Price
$20.48
Regular Price
$24.09
Unit Price
per 
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Xtremen Xtremen 91186 Mesh Bikini Color Black
Regular Price
$20.48
Sale Price
$20.48
Regular Price
$24.09
Unit Price
per 
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Xtremen Xtremen 91187 Tulle Mesh Bikini Color Black
Regular Price
$14.16
Sale Price
$14.16
Regular Price
$21.79
Unit Price
per 
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Xtremen Xtremen 91188 Tulle Mesh Trunks Color Black
Regular Price
$14.16
Sale Price
$14.16
Regular Price
$21.79
Unit Price
per 
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JOR JOR 2054 Daily Jockstrap Color Yellow
Regular Price
$18.04
Sale Price
$18.04
Regular Price
$27.76
Unit Price
per 
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JOR JOR 2062 Sailor Briefs Color White
Regular Price
$16.75
Sale Price
$16.75
Regular Price
$25.77
Unit Price
per 
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JOR JOR 2047 Element Briefs Color Red
Regular Price
$18.04
Sale Price
$18.04
Regular Price
$27.76
Unit Price
per 
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JOR JOR 2049 Element Jockstrap Color Red
Regular Price
$16.75
Sale Price
$16.75
Regular Price
$25.77
Unit Price
per 
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JOR JOR 2062 Sailor Briefs Color Red
Regular Price
$24.22
Sale Price
$24.22
Regular Price
$28.49
Unit Price
per 
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JOR JOR 2054 Daily Jockstrap Color Orange
Regular Price
$18.04
Sale Price
$18.04
Regular Price
$27.76
Unit Price
per 
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JOR JOR 2057 College Briefs Color Blue
Regular Price
$18.04
Sale Price
$18.04
Regular Price
$27.76
Unit Price
per 
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JOR JOR 2059 College Jockstrap Color Blue
Regular Price
$15.46
Sale Price
$15.46
Regular Price
$23.78
Unit Price
per 
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JOR JOR 2062 Sailor Briefs Color Blue
Regular Price
$24.22
Sale Price
$24.22
Regular Price
$28.49
Unit Price
per 
Save 35%
JOR JOR 2047 Element Briefs Color Black
Regular Price
$18.04
Sale Price
$18.04
Regular Price
$27.76
Unit Price
per