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.

Save 15%
Male Power Male Power 399-281 Easy Breezy Jock Sleeve Color Aqua
$16.92
$16.92
$19.90
Save 35%
Unico Unico 23050201104 Escaque Briefs Color 63-Green
$9.95
$9.95
$15.30
Save 15%
Unico Unico 23050100103 Talante Trunks Color 29-Coral
$26.69
$26.69
$31.40
SOLD OUT
Clever Clever 1242 Behemot Swim Trunks Color White
$9.95
$9.95
$15.30
Save 35%
Clever Clever 1208 Euphoria Briefs Color Red
$20.63
$20.63
$31.74
Save 35%
Clever Clever 1260 Euphoria Boxer Briefs Color Red
$21.92
$21.92
$33.73
Save 35%
Clever Clever 1262 Curse Briefs Color Ochre
$9.95
$9.95
$15.30
Save 35%
Clever Clever 1217 Daniel Trunks Color Green
$14.16
$14.16
$21.79
Save 35%
Clever Clever 1218 Daniel Briefs Color Green
$15.46
$15.46
$23.78
Save 35%
Clever Clever 1233 Grace Trunks Color Green
$20.63
$20.63
$31.74
Save 35%
Clever Clever 1234 Grace Briefs Color Green
$18.04
$18.04
$27.76
Save 35%
Clever Clever 1261 Curse Trunks Color Green
$18.04
$18.04
$27.76
Save 35%
Clever Clever 1208 Euphoria Briefs Color Gray
$20.63
$20.63
$31.74
Save 35%
Clever Clever 1216 Avalon Jockstrap Color Gray
$9.95
$9.95
$15.30
Save 35%
Clever Clever 1260 Euphoria Boxer Briefs Color Gray
$21.92
$21.92
$33.73
Save 35%
Clever Clever 1244 Adriel Swim Trunks Color Blue
$29.69
$29.69
$45.67
Save 35%
Clever Clever 1231 Karma Jockstrap Color Black
$9.95
$9.95
$15.30
Save 35%
Clever Clever 1212 Avalon Trunks Color Gray
$16.75
$16.75
$25.77
Save 35%
Clever Clever 1213 Avalon Briefs Color Gray
$16.75
$16.75
$25.77
Save 35%
Clever Clever 1221 Halo Briefs Color Gray
$9.95
$9.95
$15.30
SOLD OUT
Clever Clever 1211 Elysium Briefs Color Beige
$18.04
$18.04
$27.76
Save 35%
ErgoWear ErgoWear EW1429 GYM Jockstrap Color Neon Yellow
$9.95
$9.95
$15.30
Save 35%
ErgoWear ErgoWear EW1431 GYM Jockstrap Color Black
$9.95
$9.95
$15.30
Save 35%
Xtremen Xtremen 91053-3 3PK Briefs Color Fuchsia-Green-Fuchsia
$19.34
$19.34
$29.75
Save 35%
Xtremen Xtremen 91014-3 3PK Briefs Color Blue-Gray-Blue
$19.34
$19.34
$29.75
Save 35%
Xtremen Xtremen 91040-3 3PK Briefs Color Black-White-Gray
$19.34
$19.34
$29.75
Save 35%
Xtremen Xtremen 91040-3 3PK Briefs Color Black-White-Blue
$9.95
$9.95
$15.30
Save 15%
Xtremen Xtremen 91021-3 3PK Briefs Color Black-Gray-Blue
$27.96
$27.96
$32.89
Save 35%
Xtremen Xtremen 91054X-3 3PK Jockstrap Color Petrol-Fuchsia-Petrol
$19.34
$19.34
$29.75
Save 35%
Xtremen Xtremen 91057X-3 3PK Bikini Color Gray-Blue-Pink
$9.95
$9.95
$15.30