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 1792-BLK Athetic Boxer Color Black
Regular Price
$25.06
Sale Price
$25.06
Regular Price
$0.00
Unit Price
per 
Doreanse Doreanse 1792-SMK Athetic Boxer Color Smoke
Regular Price
$25.06
Sale Price
$25.06
Regular Price
$0.00
Unit Price
per 
Doreanse Doreanse 1238-PRN Waves Brief Color Printed
Regular Price
$14.17
Sale Price
$14.17
Regular Price
$0.00
Unit Price
per 
Doreanse Doreanse 1900-PRN Waves Boxer Color Printed
Regular Price
$24.29
Sale Price
$24.29
Regular Price
$0.00
Unit Price
per 
Doreanse Doreanse 1792-WHT Athetic Boxer Color White
Regular Price
$25.06
Sale Price
$25.06
Regular Price
$0.00
Unit Price
per 
Doreanse Doreanse 1273-PRN Camosaic Brief Color Green
Regular Price
$14.17
Sale Price
$14.17
Regular Price
$0.00
Unit Price
per 
Doreanse Doreanse 1361-PRN Dorian Brief Color Printed
Regular Price
$14.17
Sale Price
$14.17
Regular Price
$0.00
Unit Price
per 
SALE
ErgoWear ErgoWear EW0934 FEEL Modal Long Boxer Briefs Color Burgundy
Regular Price
$19.42
Sale Price
$19.42
Regular Price
$29.88
Unit Price
per 
Doreanse Doreanse 1219-DRO String Jock Color Dusty Rose
Regular Price
$15.69
Sale Price
$15.69
Regular Price
$0.00
Unit Price
per 
Doreanse Doreanse 1219-BLU String Jock Color Cobalt Blue
Regular Price
$15.69
Sale Price
$15.69
Regular Price
$0.00
Unit Price
per 
Doreanse Doreanse 1219-FUC String Jock Color Fuchsia
Regular Price
$15.69
Sale Price
$15.69
Regular Price
$0.00
Unit Price
per 
Doreanse Doreanse 1373-PHX Disco Bikini Color Phoenix
Regular Price
$14.59
Sale Price
$14.59
Regular Price
$0.00
Unit Price
per 
Doreanse Doreanse 1373-CLB Disco Bikini Color Circuit
Regular Price
$14.59
Sale Price
$14.59
Regular Price
$0.00
Unit Price
per 
Doreanse Doreanse 1373-RBW Disco Bikini Color Rainbow
Regular Price
$14.59
Sale Price
$14.59
Regular Price
$0.00
Unit Price
per 
SOLD OUT
ErgoWear ErgoWear EW0984 FEEL XV Briefs Color Mint
Regular Price
$21.33
Sale Price
$21.33
Regular Price
$32.82
Unit Price
per 
SALE
ErgoWear ErgoWear EW0995 FEEL XV Boxer Briefs Color Dark Pink
Regular Price
$25.94
Sale Price
$25.94
Regular Price
$39.90
Unit Price
per 
Doreanse Doreanse 1395-BLU Aire Bikini Color Cobalt Blue
Regular Price
$17.47
Sale Price
$17.47
Regular Price
$0.00
Unit Price
per 
Doreanse Doreanse 1305-PRN Year of the Bull Briefs Color Printed
Regular Price
$13.66
Sale Price
$13.66
Regular Price
$0.00
Unit Price
per 
Doreanse Doreanse 1321-RED Sexy Sheer Brief Color Red
Regular Price
$13.42
Sale Price
$13.42
Regular Price
$0.00
Unit Price
per 
SALE
ErgoWear ErgoWear EW1023 FEEL Modal Boxer Briefs Color Royal Blue
Regular Price
$19.42
Sale Price
$19.42
Regular Price
$29.88
Unit Price
per 
SALE
ErgoWear ErgoWear EW1029 FEEL Modal Briefs Color Gray
Regular Price
$15.57
Sale Price
$15.57
Regular Price
$23.96
Unit Price
per 
SALE
ErgoWear ErgoWear EW1027 FEEL Modal Boxer Briefs Color Burgundy
Regular Price
$19.42
Sale Price
$19.42
Regular Price
$29.88
Unit Price
per 
SALE
ErgoWear ErgoWear EW1063 FEEL Swim Voyager Swim Trunks Color Turquoise
Regular Price
$36.27
Sale Price
$36.27
Regular Price
$55.80
Unit Price
per 
SALE
ErgoWear ErgoWear EW1059 FEEL Swim Mundi Swim Trunks Color Calypso
Regular Price
$36.27
Sale Price
$36.27
Regular Price
$55.80
Unit Price
per 
SALE
ErgoWear ErgoWear EW1057 FEEL Swim Zigzag Swim Trunks Color White
Regular Price
$36.27
Sale Price
$36.27
Regular Price
$55.80
Unit Price
per 
SALE
ErgoWear ErgoWear EW1066 GYM Short Feel Bikini Color White
Regular Price
$58.44
Sale Price
$58.44
Regular Price
$89.90
Unit Price
per 
SALE
ErgoWear ErgoWear EW1071 GYM Short X4D Thongs Color White
Regular Price
$76.42
Sale Price
$76.42
Regular Price
$89.90
Unit Price
per 
SOLD OUT
ErgoWear ErgoWear EW1070 GYM Short X4D Bikini Color White
Regular Price
$58.44
Sale Price
$58.44
Regular Price
$89.90
Unit Price
per 
SOLD OUT
ErgoWear ErgoWear EW1067 GYM Short Feel Thongs Color White
Regular Price
$58.44
Sale Price
$58.44
Regular Price
$89.90
Unit Price
per 
SALE
ErgoWear ErgoWear EW1095 FEEL GR8 Boxer Briefs Color Dusty Pink
Regular Price
$35.24
Sale Price
$35.24
Regular Price
$41.46
Unit Price
per