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%
ErgoWear ErgoWear EW1612 MAX SE Jockstrap Color Royal Blue
$44.00
$44.00
$52.00
Save 15%
ErgoWear ErgoWear EW1615 MAX SE Jockstrap Color Red
$44.00
$44.00
$52.00
Save 15%
ErgoWear ErgoWear EW1613 MAX SE Jockstrap Color Neon Yellow
$44.00
$44.00
$52.00
Save 15%
ErgoWear ErgoWear EW1614 MAX SE Jockstrap Color Black
$44.00
$44.00
$52.00
Save 15%
ErgoWear ErgoWear EW1655 SLK Boxer Briefs Color Navy Blue
$51.00
$51.00
$60.00
Save 15%
ErgoWear ErgoWear EW1659 SLK Boxer Briefs Color Burgundy
$51.00
$51.00
$60.00
Save 15%
ErgoWear ErgoWear EW1663 SLK Boxer Briefs Color Black
$51.00
$51.00
$60.00
Save 15%
ErgoWear ErgoWear EW1696 FEEL SW Swim Trunks Color Pink Leaves
$78.00
$78.00
$92.00
Save 15%
ErgoWear ErgoWear EW1698 FEEL SW Swim Trunks Color Abstract Blue
$78.00
$78.00
$92.00
Save 15%
ErgoWear ErgoWear EW1676 MAX FLOW Jockstrap Color Smoke Green
$45.00
$45.00
$53.00
Save 15%
ErgoWear ErgoWear EW1680 MAX FLOW Boxer Briefs Color Smoke Green
$52.00
$52.00
$61.00
Save 15%
ErgoWear ErgoWear EW1681 MAX FLOW Jockstrap Color Gray
$45.00
$45.00
$53.00
Save 15%
ErgoWear ErgoWear EW1685 MAX FLOW Boxer Briefs Color Gray
$52.00
$52.00
$61.00
Save 15%
ErgoWear ErgoWear EW1686 MAX FLOW Jockstrap Color Black
$45.00
$45.00
$53.00
Save 15%
ErgoWear ErgoWear EW1690 MAX FLOW Boxer Briefs Color Black
$52.00
$52.00
$61.00
ErgoWear ErgoWear EW1710 X4D Boxer Briefs Color Royal Blue
$72.00
$72.00
ErgoWear ErgoWear EW1706 X4D Boxer Briefs Color Gray
$72.00
$72.00
ErgoWear ErgoWear EW1702 X4D Boxer Briefs Color Black
$72.00
$72.00
Doreanse Doreanse 1281-NVY Hang-loose Bikini Brief Color Navy Blue
$23.00
$23.00
$0.00
Doreanse Doreanse 1760-BLK Low-rise Trunk Color Black
$33.00
$33.00
$0.00
Doreanse Doreanse 1215-BLK Naked Bikini Color Black
$26.00
$26.00
$0.00
Save 33%
HAWAI HAWAI 41946 Jockstrap Color Black
$16.00
$16.00
$24.00
Doreanse Doreanse 1313-BLK Ribbed Micromodal Bikini Color Black
$30.00
$30.00
$0.00
Save 13%
Hidden Hidden 955 Mesh Briefs Color Black
$33.00
$33.00
$38.00
Save 34%
Hidden Hidden 957 Open Butt Trunk Color Black
$27.00
$27.00
$41.00
Save 16%
Hidden Hidden 952 Mesh Trunks Color Blue
$38.00
$38.00
$45.00
Save 34%
Hidden Hidden 952 Mesh Trunks Color White
$27.00
$27.00
$41.00
Save 14%
Hidden Hidden 953 Garterbelt Briefs Color White
$49.00
$49.00
$57.00
Save 15%
HAWAI HAWAI 42026 Briefs Color Blue
$28.00
$28.00
$33.00
Doreanse Doreanse 1395-BLU Aire Bikini Color Cobalt Blue
$30.00
$30.00
$0.00