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.

Doreanse Doreanse 1313-BLK Ribbed Micromodal Bikini Color Black
Regular Price
$19.78
Sale Price
$19.78
Regular Price
$0.00
Unit Price
per 
Save 35%
Hidden Hidden 955 Mesh Briefs Color Black
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
Save 35%
Hidden Hidden 957 Open Butt Trunk Color Black
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
Save 35%
Hidden Hidden 953 Garterbelt Briefs Color White
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
Save 35%
HAWAI HAWAI 42026 Briefs Color Blue
Regular Price
$12.87
Sale Price
$12.87
Regular Price
$19.80
Unit Price
per 
Doreanse Doreanse 1395-BLU Aire Bikini Color Cobalt Blue
Regular Price
$20.02
Sale Price
$20.02
Regular Price
$0.00
Unit Price
per 
Save 35%
HAWAI HAWAI 41946 Solid Athletic Jockstrap Color Royal Blue
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
Save 35%
HAWAI HAWAI 42052 Beige Athletic Jockstrap Color Ivory
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
Save 35%
Xtremen Xtremen 91085 Microfiber Jacquard Jockstrap Color Red
Regular Price
$12.87
Sale Price
$12.87
Regular Price
$19.80
Unit Price
per 
Save 35%
Xtremen Xtremen 91084 Microfiber Pride Jockstrap Color Blue
Regular Price
$12.87
Sale Price
$12.87
Regular Price
$19.80
Unit Price
per 
Save 35%
Xtremen Xtremen 91083 Microfiber Pride Jockstrap Color Red
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
Save 35%
Xtremen Xtremen 91082 Microfiber Pride Bikini Color Red
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
Save 35%
Xtremen Xtremen 91084 Microfiber Pride Jockstrap Color Red
Regular Price
$12.87
Sale Price
$12.87
Regular Price
$19.80
Unit Price
per 
Save 15%
Xtremen Xtremen 91085 Microfiber Jacquard Jockstrap Color Gray
Regular Price
$18.61
Sale Price
$18.61
Regular Price
$21.89
Unit Price
per 
HAWAI HAWAI 41946 Solid Athletic Jockstrap Color Pearl
Regular Price
$5.00
Sale Price
$5.00
Regular Price
$0.00
Unit Price
per 
Save 35%
HAWAI HAWAI 42121 Printed Athletic Trunks Color Black
Regular Price
$14.16
Sale Price
$14.16
Regular Price
$21.79
Unit Price
per 
Save 35%
HAWAI HAWAI 41946T Animal Print Athletic Jockstrap Color Amethyst
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
HAWAI HAWAI 41903 Solid Athletic Boxer Briefs Color Black
Regular Price
$8.00
Sale Price
$8.00
Regular Price
$0.00
Unit Price
per 
Save 35%
HAWAI HAWAI 41946 Solid Athletic Jockstrap Color Amethyst
Regular Price
$10.28
Sale Price
$10.28
Regular Price
$15.82
Unit Price
per 
HAWAI HAWAI 41946T Animal Print Athletic Jockstrap Color Pink
Regular Price
$5.00
Sale Price
$5.00
Regular Price
$0.00
Unit Price
per 
HAWAI HAWAI 42141 Solid Hip Briefs Color Pearl
Regular Price
$24.09
Sale Price
$24.09
Regular Price
$0.00
Unit Price
per 
Save 35%
HAWAI HAWAI 42134 Printed Mini Trunks Color Green
Regular Price
$12.87
Sale Price
$12.87
Regular Price
$19.80
Unit Price
per 
HAWAI HAWAI 41946 Solid Athletic Jockstrap Color Caramel
Regular Price
$5.00
Sale Price
$5.00
Regular Price
$0.00
Unit Price
per 
Save 35%
HAWAI HAWAI 41946 Solid Athletic Jockstrap Color Red
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
HAWAI HAWAI 41946 Solid Athletic Jockstrap Color Vanilla
Regular Price
$5.00
Sale Price
$5.00
Regular Price
$0.00
Unit Price
per 
Save 35%
HAWAI HAWAI 41946 Solid Athletic Jockstrap Color Coral
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
Save 35%
HAWAI HAWAI 42192 Printed Microfiber Hip Briefs Color Military Green
Regular Price
$14.16
Sale Price
$14.16
Regular Price
$21.79
Unit Price
per 
Save 35%
HAWAI HAWAI 42173 Printed Microfiber Trunks Color Royal Blue
Regular Price
$15.46
Sale Price
$15.46
Regular Price
$23.78
Unit Price
per 
Save 35%
HAWAI HAWAI 42183 Printed Microfiber Briefs Color Taupe
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per 
Save 35%
HAWAI HAWAI 42168 Printed Microfiber Jockstrap Color Royal Blue
Regular Price
$9.95
Sale Price
$9.95
Regular Price
$15.30
Unit Price
per