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%
Roger Smuth Roger Smuth RS082 Jockstrap Color Black
¥4,100
¥4,100
¥6,300
Save 16%
Xtremen Xtremen 91187 Tulle Mesh Bikini Color Green
¥3,100
¥3,100
¥3,700
Save 33%
Xtremen Xtremen 91188 Tulle Mesh Trunks Color Green
¥2,200
¥2,200
¥3,300
Save 16%
Xtremen Xtremen 91186 Mesh Bikini Color Gray
¥3,100
¥3,100
¥3,700
Save 14%
Xtremen Xtremen 91180 Microfiber Trunks Color Gold
¥3,700
¥3,700
¥4,300
Save 16%
Xtremen Xtremen 91181 Microfiber Trunks Color Black
¥3,100
¥3,100
¥3,700
Save 16%
Xtremen Xtremen 91183 Microfiber Bikini Color Black
¥3,100
¥3,100
¥3,700
Save 16%
Xtremen Xtremen 91186 Mesh Bikini Color Black
¥3,100
¥3,100
¥3,700
Save 33%
Xtremen Xtremen 91187 Tulle Mesh Bikini Color Black
¥2,200
¥2,200
¥3,300
Save 33%
Xtremen Xtremen 91188 Tulle Mesh Trunks Color Black
¥2,200
¥2,200
¥3,300
Save 33%
JOR JOR 2054 Daily Jockstrap Color Yellow
¥2,800
¥2,800
¥4,200
Save 33%
JOR JOR 2062 Sailor Briefs Color White
¥2,600
¥2,600
¥3,900
Save 33%
JOR JOR 2047 Element Briefs Color Red
¥2,800
¥2,800
¥4,200
Save 33%
JOR JOR 2049 Element Jockstrap Color Red
¥2,600
¥2,600
¥3,900
Save 14%
JOR JOR 2062 Sailor Briefs Color Red
¥3,700
¥3,700
¥4,300
Save 33%
JOR JOR 2054 Daily Jockstrap Color Orange
¥2,800
¥2,800
¥4,200
Save 33%
JOR JOR 2057 College Briefs Color Blue
¥2,800
¥2,800
¥4,200
Save 33%
JOR JOR 2059 College Jockstrap Color Blue
¥2,400
¥2,400
¥3,600
Save 14%
JOR JOR 2062 Sailor Briefs Color Blue
¥3,700
¥3,700
¥4,300
Save 33%
JOR JOR 2047 Element Briefs Color Black
¥2,800
¥2,800
¥4,200
Save 33%
JOR JOR 2049 Element Jockstrap Color Black
¥2,600
¥2,600
¥3,900
Save 33%
JOR JOR 2057 College Briefs Color Black
¥2,800
¥2,800
¥4,200
Save 33%
JOR JOR 2059 College Jockstrap Color Black
¥2,400
¥2,400
¥3,600
Save 14%
Clever Clever 519962 3PK Australian Latin Briefs Briefs Color Red-Black-Grape
¥7,100
¥7,100
¥8,300
Save 14%
Clever Clever 519961 3PK Australian Latin Briefs Briefs Color Blue-Ochre-Gold
¥7,100
¥7,100
¥8,300
Save 14%
Clever Clever 519963 3PK Australian Latin Briefs Briefs Color Blue-Black-Black
¥7,100
¥7,100
¥8,300
Save 15%
Clever Clever 2373 Australian Latin Boxer Briefs Color White
¥3,400
¥3,400
¥4,000
Doreanse Doreanse 1760-GRY Low-rise Trunk Color Gray
¥3,300
¥3,300
¥0
Doreanse Doreanse 1395-BLK Aire Bikini Color Black
¥3,100
¥3,100
¥0
Doreanse Doreanse 1760-WHT Low-rise Trunk Color White
¥3,300
¥3,300
¥0