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.
Papi Papi UMPA048 2PK Microflex Brazilian Trunks Color Gray-Texture
$28.00
$28.00
SALE
Papi Papi UMPA050 Fashion Microflex Brazilian Trunks Color Sunrise Multi Print
$9.95
$9.95
$15.30
SALE
Papi Papi UMPA050 Fashion Microflex Brazilian Trunks Color Ocean Multi Print
$9.95
$9.95
$15.30
SALE
Papi Papi UMPA051 Fashion Microflex Brazilian Jockstrap Color Purple Pixel Print
$9.95
$9.95
$15.30
Papi Papi UMPA051 Fashion Microflex Brazilian Jockstrap Color Orange Pixel Print
$24.00
$24.00
SALE
Papi Papi UMPA048 2PK Microflex Brazilian Trunks Color Blue-Texture
$9.95
$9.95
$15.30
SALE
Papi Papi UMPA049 2PK Microflex Jockstrap Color Blue-Texture
$9.95
$9.95
$15.30
Papi Papi UMPA074 2PK Microflex Brazilian Trunks Color Tropics-Blue
$28.00
$28.00
Papi Papi UMPA088 2PK Microflex Brazilian Boxer Briefs Color Blue-Black
$30.00
$30.00
SALE
Papi Papi UMPA081 2PK Microflex Jockstrap Color Tropical-Black
$9.95
$9.95
$15.30
SALE
Papi Papi UMPA081 2PK Microflex Jockstrap Color Pink-Black
$9.95
$9.95
$15.30
SALE
Papi Papi UMPA076 2PK Microflex Brazilian Trunks Color Waves-Black
$9.95
$9.95
$15.30
Papi Papi UMPA088 2PK Microflex Brazilian Boxer Briefs Color Turquoise-Black
$30.00
$30.00
SALE
Papi Papi UMPA081 2PK Microflex Jockstrap Color Alloy-Black
$9.95
$9.95
$15.30
SALE
Papi Papi UMPA080 2PK Microflex Brazilian Trunks Color Pink-Black
$9.95
$9.95
$15.30
Papi Papi UMPA080 2PK Microflex Brazilian Trunks Color Alloy-Black
$28.00
$28.00
Papi Papi UMPA081 2PK Microflex Jockstrap Color Waves-Black
$24.00
$24.00
Papi Papi UMPA076 2PK Microflex Brazilian Trunks Color Tropical-Black
$28.00
$28.00
SALE
Papi Papi UMPA087 2PK Microflex Jockstrap Color Blue-Black
$9.95
$9.95
$15.30
SALE
Papi Papi UMPA074 2PK Microflex Brazilian Trunks Color Tie Dye-Blue
$9.95
$9.95
$15.30
Papi Papi UMPA107 2PK Microflex Performance Trunks Color Teal-Blue
$28.00
$28.00
SALE
Papi Papi UMPA107 2PK Microflex Performance Trunks Color Gray-Red
$9.95
$9.95
$15.30
SALE
Papi Papi UMPA108 2PK Microflex Performance Jockstrap Color Teal-Blue
$9.95
$9.95
$15.30
Papi Papi UMPA107 2PK Microflex Performance Trunks Color Gray-Blue
$28.00
$28.00
SALE
Papi Papi UMPA108 2PK Microflex Performance Jockstrap Color Blue-Red
$9.95
$9.95
$15.30
Papi Papi UMPA107 2PK Microflex Performance Trunks Color Blue-Printed
$28.00
$28.00
SALE
Papi Papi UMPA108 2PK Microflex Performance Jockstrap Color Blue-Printed
$9.95
$9.95
$15.30
SALE
Papi Papi UMPA108 2PK Microflex Performance Jockstrap Color Blue-Gray
$9.95
$9.95
$15.30
Papi Papi UMPA107 2PK Microflex Performance Trunks Color Black-Yellow
$28.00
$28.00
SALE
Papi Papi UMPA108 2PK Microflex Performance Jockstrap Color Black-Blue
$9.95
$9.95
$15.30