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 35%
JOR JOR 2049 Element Jockstrap Color Black
¥2,600
¥2,600
¥4,000
Save 35%
JOR JOR 2057 College Briefs Color Black
¥2,800
¥2,800
¥4,300
Save 35%
JOR JOR 2059 College Jockstrap Color Black
¥2,400
¥2,400
¥3,700
Save 15%
Clever Clever 519962 3PK Australian Latin Briefs Briefs Color Red-Black-Grape
¥7,200
¥7,200
¥8,500
Save 15%
Clever Clever 519961 3PK Australian Latin Briefs Briefs Color Blue-Ochre-Gold
¥7,200
¥7,200
¥8,500
Save 15%
Clever Clever 519963 3PK Australian Latin Briefs Briefs Color Blue-Black-Black
¥7,200
¥7,200
¥8,500
Save 15%
Clever Clever 2373 Australian Latin Boxer Briefs Color White
¥3,500
¥3,500
¥4,100
Doreanse Doreanse 1760-GRY Low-rise Trunk Color Gray
¥3,400
¥3,400
¥0
Doreanse Doreanse 1395-BLK Aire Bikini Color Black
¥3,100
¥3,100
¥0
Doreanse Doreanse 1760-WHT Low-rise Trunk Color White
¥3,400
¥3,400
¥0
Doreanse Doreanse 1281-BLK Hang-loose Bikini Brief Color Black
¥2,400
¥2,400
¥0
Doreanse Doreanse 1781-SMK Naked Mini Trunk Color Smoke
¥2,900
¥2,900
¥0
Doreanse Doreanse 1781-BLK Naked Mini Trunk Color Black
¥2,900
¥2,900
¥0
Clever Clever 2412 Antonio Boxer Briefs Color Beige
¥1,300
¥1,300
¥0
Save 15%
Clever Clever 519940 2PK Australian Briefs Color Black-White
¥5,500
¥5,500
¥6,500
Save 15%
Clever Clever 0420 Requirement Trunks Color Black
¥4,000
¥4,000
¥4,700
Save 33%
Xtremen Xtremen 91102 Microfiber Jockstrap Color Red
¥1,600
¥1,600
¥2,400
Save 33%
Xtremen Xtremen 91102 Microfiber Jockstrap Color Jasper Gray
¥1,600
¥1,600
¥2,400
Save 16%
Clever Clever 0568-1 Elements Briefs Color Black
¥3,200
¥3,200
¥3,800
Save 33%
Xtremen Xtremen 91107 Protuder Jockstrap Color Maroon
¥1,600
¥1,600
¥2,400
Save 35%
Clever Clever 0899 Lighting Trunks Color Light Pink
¥3,200
¥3,200
¥4,900
Save 35%
Clever Clever 0902 Lighting Jockstrap Color Ochre
¥3,000
¥3,000
¥4,600
Save 33%
Roger Smuth Roger Smuth RS062 Trunks Color Black
¥1,600
¥1,600
¥2,400
Save 33%
Roger Smuth Roger Smuth RS062 Trunks Color White
¥1,600
¥1,600
¥2,400
Save 33%
Roger Smuth Roger Smuth RS060 Trunks Color White
¥1,600
¥1,600
¥2,400
Save 15%
Roger Smuth Roger Smuth RS067 Thongs Color White
¥5,200
¥5,200
¥6,100
Save 16%
Roger Smuth Roger Smuth RS063 Jockstrap Color Black
¥4,900
¥4,900
¥5,800
Save 35%
Roger Smuth Roger Smuth RS060 Trunks Color Black
¥4,000
¥4,000
¥6,200
Save 35%
Roger Smuth Roger Smuth RS064 Trunks Color White
¥4,400
¥4,400
¥6,800
Save 33%
Roger Smuth Roger Smuth RS069 Jockstrap Color White
¥1,600
¥1,600
¥2,400