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.
Male Power Male Power 150-249 Avant-Garde Enhancer Short Color Antique Blue
¥1,300
¥1,300
¥0
SOLD OUT
Papi Papi 980911-001 3PK Cotton Stretch Jockstrap Color Black
¥1,500
¥1,500
¥2,400
SOLD OUT
Papi Papi 980501-950 3PK Cotton Stretch Brazilian Solids Color Red-Gray-Black
¥1,500
¥1,500
¥2,400
Save 38%
Papi Papi 980911-941 3PK Cotton Stretch Jockstrap Color Black-Cobalt-Blue
¥1,500
¥1,500
¥2,400
SOLD OUT
Pikante Pikante PIK 8709 Frenzy Briefs Color White
¥1,000
¥1,000
¥0
SOLD OUT
PPU PPU 0965 Jockstrap Color Blue
¥1,900
¥1,900
¥2,300
PPU PPU 1325 Tuxedo Boxer Briefs Color Blue
¥1,300
¥1,300
¥0
SOLD OUT
PPU PPU 0965 Jockstrap Color Gray
¥1,900
¥1,900
¥2,300
PPU PPU 1325 Tuxedo Boxer Briefs Color White
¥1,300
¥1,300
¥0
SOLD OUT
PPU PPU 0965 Jockstrap Color Orange
¥1,900
¥1,900
¥2,300
SOLD OUT
PPU PPU 0965 Jockstrap Color White-Black
¥1,900
¥1,900
¥2,300
SOLD OUT
PPU PPU 1305 Jockstrap Color Black
¥4,300
¥4,300
¥5,100
SOLD OUT
PPU PPU 1305 Jockstrap Color Blue
¥4,300
¥4,300
¥5,100
Save 14%
PPU PPU 1308 Jockstrap Color Gray-Red
¥2,400
¥2,400
¥2,800
SOLD OUT
PPU PPU 1707 Jockstrap Color Black
¥3,900
¥3,900
¥4,600
Unico Unico 1802010021693 Boxer Briefs Seed Color Multi
¥1,300
¥1,300
¥0
Unico Unico 1802010013000 Boxer Briefs Reconnect Color White
¥1,300
¥1,300
¥0
Unico Unico 1802010024082 Boxer Briefs Vernon Color Blue
¥1,300
¥1,300
¥0
SOLD OUT
Unico Unico 1802010020897 Boxer Briefs Kupila Color Black
¥1,300
¥1,300
¥0
Unico Unico 1802010011204 Boxer Briefs True Color Gray
¥1,300
¥1,300
¥0
Unico Unico 1802010023000 Boxer Briefs Reconnect Color White
¥1,300
¥1,300
¥0
Unico Unico 1802010024193 Boxer Briefs Huerta Color Multi
¥1,300
¥1,300
¥0
Unico Unico 1802010023446 Boxer Briefs Root Color Blue
¥1,300
¥1,300
¥0
Unico Unico 1802010023599 Boxer Briefs Visionario Color Black
¥1,300
¥1,300
¥0
Unico Unico 1802010021204 Boxer Briefs True Color Gray
¥1,300
¥1,300
¥0
Unico Unico 1802010022166 Boxer Briefs Ruso Color Multi
¥1,300
¥1,300
¥0
SOLD OUT
Unico Unico 1802010021194 Boxer Briefs Self Color Gray
¥1,300
¥1,300
¥0
Unico Unico 1802010021866 Boxer Briefs Spirit Color Multi
¥1,300
¥1,300
¥0
Unico Unico 1802010025146 Boxer Briefs Track Color Blue
¥1,300
¥1,300
¥0
Unico Unico 1802010013196 Boxer Briefs Raiz Color Black
¥1,300
¥1,300
¥0