Underwear...with an Attitude.

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

Clever

Clever 519939 2PK Basic Briefs Color Black-White

$35.34
$41.58
SALE

Clever

Clever 519940 2PK Australian Briefs Color Black-White

$32.71
$38.48
SALE

Clever

Clever 229923 2PK Basic Boxer Briefs Color Black-White

$36.61
$43.08

Male Power

Male Power 300-263 Impressions Moonshine Color Coral

$23.90

Private Structure

Private Structure BLUY4017 Low Rise Hipster Be-Fit Player Color Navy

$24.30

Private Structure

Private Structure BLUY4017 Low Rise Hipster Be-Fit Player Color Dark Melange

$24.30

Private Structure

Private Structure BLUY4017 Low Rise Hipster Be-Fit Player Color Royal

$24.30

Private Structure

Private Structure BLUY4017 Low Rise Hipster Be-Fit Player Color White

$24.30
SALE

JOR

JOR 1169 Rally Athletic Pants Color Green

$39.98
$47.04

ErgoWear

ErgoWear EW0989 FEEL XV Boxer Briefs Color Cerulean

$39.90
SALE

JOR

JOR 1181 Bosse Athletic Pants Color Gray

$64.42
$75.79

ErgoWear

ErgoWear EW0984 FEEL XV Briefs Color Mint

$32.82

ErgoWear

ErgoWear EW0990 FEEL XV Briefs Color Royal Blue

$32.82

ErgoWear

ErgoWear EW0995 FEEL XV Boxer Briefs Color Dark Pink

$39.90

ErgoWear

ErgoWear EW0986 FEEL XV Boxer Briefs Color Mint

$39.90

ErgoWear

ErgoWear EW0992 FEEL XV Boxer Briefs Color Royal Blue

$39.90

ErgoWear

ErgoWear EW0987 FEEL XV Briefs Color Cerulean

$32.82

ErgoWear

ErgoWear EW0993 FEEL XV Briefs Color Dark Pink

$32.82

Male Power

Male Power 148-261 Cage Matte Cage Back Singlet Color Black

$31.00

Male Power

Male Power 145-264 Diamond Mesh Mini Short Color Navy

$23.90

Male Power

Male Power 145-263 Impressions Short Color Coral

$25.90

Male Power

Male Power 398-264 Diamond Mesh Jock Ring Color Navy

$22.50

Male Power

Male Power 121-261 Cage Matte Cage Short Color Black

$25.90

Male Power

Male Power 352-261 Cage Matte Strappy Ring Jock Color Black

$23.90

Male Power

Male Power 145-263 Impressions Short Color Black

$25.90

Male Power

Male Power 150-257 Pure Comfort Wonder Short Color White

$19.90

Male Power

Male Power 300-263 Impressions Moonshine Color Black

$23.90

Male Power

Male Power 392-257 Pure Comfort Sport Jock Color White

$18.50
SALE

JOR

JOR 1169 Rally Athletic Pants Color White

$39.98
$47.04
SALE

JOR

JOR 1170 Ares Athletic Pants Color Black

$39.98
$47.04
SALE

JOR

JOR 1170 Ares Athletic Pants Color White

$39.98
$47.04
SALE

JOR

JOR 1169 Rally Athletic Pants Color Blue

$39.98
$47.04
SALE

Pikante

Pikante PIK 0235 Buddies Printed Briefs Color Pink

$21.47
$25.26
SALE

Pikante

Pikante PIK 0216 Satisfaction Harness Jockstrap Color White

$24.83
$29.22
SALE

Pikante

Pikante PIK 0207 Partner Mesh Jockstrap Color White

$22.31
$26.25
SALE

Pikante

Pikante PIK 0234 Compatibility Ruched Printed Briefs Color Black

$23.56
$27.72
SALE

Pikante

Pikante PIK 0235 Buddies Printed Briefs Color Gray

$21.47
$25.26
SALE

Pikante

Pikante PIK 0217 Adventures Garter Briefs Color White

$26.93
$31.68
SALE

Pikante

Pikante PIK 0216 Satisfaction Harness Jockstrap Color Dark Blue

$24.83
$29.22
SALE

Pikante

Pikante PIK 0209 Share Minimalist Jockstrap Color Black

$16.42
$19.32
SALE

Pikante

Pikante PIK 0222 Communication Mesh Briefs Color Black

$17.26
$20.31
SALE

Pikante

Pikante PIK 0220 BFF Mesh Trunks Color White

$29.88
$35.16
SALE

Pikante

Pikante PIK 0217 Adventures Garter Briefs Color Black

$26.93
$31.68
SALE

Pikante

Pikante PIK 0218 Attraction Ruched Briefs Color Black

$25.25
$29.70
SALE

Pikante

Pikante PIK 0212 Idyllic Open Briefs Color White

$25.68
$30.21
SALE

Pikante

Pikante PIK 0207 Partner Mesh Jockstrap Color Black

$22.31
$26.25
SALE

Pikante

Pikante PIK 0236 Intuition Soho Long Johns Color Black

$31.14
$36.63
SALE

Pikante

Pikante PIK 0222 Communication Mesh Briefs Color White

$17.26
$20.31

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