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.

SALE
Unico Unico 1902010010352 Trunks Realism Color Black-White
$16.00
$16.00
$24.00
SALE
Unico Unico 1902010012093 Trunks Americano Color Printed
$31.00
$31.00
$48.00
SOLD OUT
Unico Unico 1902010012552 Trunks Crossbreed Color Black-White
$32.00
$32.00
$48.00
SALE
Unico Unico 1902010011993 Trunks Fintech Color Printed
$16.00
$16.00
$24.00
SALE
Unico Unico 1902010022863 Boxer Briefs Techne Color Black-White
$34.00
$34.00
$52.00
SALE
Unico Unico 19160301230 Hilarious Jockstrap Color 89-Red
$20.00
$20.00
$31.00
SOLD OUT
Unico Unico 22040100103 Seleirolia Trunks Color 90-Printed
$30.00
$30.00
$46.00
Papi Papi 980501-941 3PK Cotton Stretch Brazilian Solids Color Black-Cobalt-Blue
$37.00
$37.00
Papi Papi 554101-001 3PK 1X1 Rib Low Rise Brief Color Black
$32.00
$32.00
Papi Papi 980501-001 3PK Cotton Stretch Brazilian Solids Color Black
$37.00
$37.00
SALE
Papi Papi 705910-001 3PK 1X1 Rib Jockstrap Color Black
$16.00
$16.00
$24.00
Papi Papi 980911-001 3PK Cotton Stretch Jockstrap Color Black
$27.00
$27.00
Papi Papi 980501-950 3PK Cotton Stretch Brazilian Solids Color Red-Gray-Black
$37.00
$37.00
Papi Papi 980403-941 3PK Cotton Stretch Brief Color Black-Cobalt-Blue
$30.00
$30.00
SALE
Papi Papi 980403-950 3PK Cotton Stretch Brief Color Red-Gray-Black
$16.00
$16.00
$24.00
Papi Papi 980403-001 3PK Cotton Stretch Brief Color Black
$30.00
$30.00
Papi Papi 705910W-100 3PK 1X1 Rib Jockstrap Color White
$31.00
$31.00
SOLD OUT
Papi Papi 554101W-100 3PK 1X1 Rib Low Rise Brief Color White
$32.00
$32.00
Papi Papi 980911-941 3PK Cotton Stretch Jockstrap Color Black-Cobalt-Blue
$27.00
$27.00
SALE
Papi Papi 980911-950 3PK Cotton Stretch Jockstrap Color Red-Gray-Black
$16.00
$16.00
$24.00
Papi Papi 980503-969 3PK Cotton Stretch Brazilian Yarndye Band Stripe Color Turquoise-Black
$37.00
$37.00
SOLD OUT
Papi Papi 980503-982 3PK Cotton Stretch Brazilian Yarndye Band Stripe Color Red-Black
$37.00
$37.00
Papi Papi 554101-962 3PK 1X1 Rib Low Rise Brief Color Black-Charcoal-Gray
$32.00
$32.00
Papi Papi 705910-962 3PK 1X1 Rib Jockstrap Color Black-Charcoal-Gray
$31.00
$31.00
SOLD OUT
Papi Papi 554101-400 3PK 1X1 Rib Low Rise Brief Color Light Blue-Cobalt-Navy
$32.00
$32.00
SOLD OUT
Papi Papi 554101-999 3PK 1X1 Rib Low Rise Brief Color Black-Red-Turquoise
$32.00
$32.00
SALE
Papi Papi 705910-999 3PK 1X1 Rib Jockstrap Color Black-Red-Turquoise
$16.00
$16.00
$24.00
SALE
Papi Papi 626185-962 Cool2 2PK Solid Boxer Briefs Color Black-Gray
$16.00
$16.00
$24.00
SALE
Papi Papi 626185-982 Cool2 2PK Solid Boxer Briefs Color Black-Red
$16.00
$16.00
$24.00
SOLD OUT
Papi Papi 990002-906 4PK Boxer Briefs Color Gray-Orange-Black-Black
$41.00
$41.00