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.
Xtremen Xtremen 91147 Printed Microfiber Trunks Color Rainbow Prism
¥3,200
¥3,200
¥0
Save 34%
Xtremen Xtremen 91148 Printed Microfiber Jockstrap Color Rainbow Prism
¥1,900
¥1,900
¥2,900
Xtremen Xtremen 91145 Printed Microfiber Bikini Color Rainbow Fish
¥2,900
¥2,900
¥0
Save 34%
Xtremen Xtremen 91147 Printed Microfiber Trunks Color Rainbow Fish
¥1,900
¥1,900
¥2,900
Save 34%
Xtremen Xtremen 91148 Printed Microfiber Jockstrap Color Rainbow Fish
¥1,900
¥1,900
¥2,900
Xtremen Xtremen 91145 Printed Microfiber Bikini Color Mandala
¥2,900
¥2,900
¥0
Xtremen Xtremen 91147 Printed Microfiber Trunks Color Mandala
¥3,200
¥3,200
¥0
Save 34%
Xtremen Xtremen 91148 Printed Microfiber Jockstrap Color Mandala
¥1,900
¥1,900
¥2,900
Xtremen Xtremen 91147 Printed Microfiber Trunks Color Disco Zebra
¥3,200
¥3,200
¥0
Xtremen Xtremen 91148 Printed Microfiber Jockstrap Color Disco Zebra
¥3,200
¥3,200
¥0
Save 37%
CandyMan CandyMan 99692 Jock Briefs Color Black
¥1,700
¥1,700
¥2,700
Save 36%
CandyMan CandyMan 99696 Jock Briefs Color Black
¥3,600
¥3,600
¥5,600
Unico Unico 23050100117 Bucle Trunks Color 90-Printed
¥4,600
¥4,600
¥0
Unico Unico 23050100101 Efige Trunks Color 63-Turquoise
¥4,600
¥4,600
¥0
Unico Unico 23050100116 Espectaculo Trunks Color 63-Turquoise
¥4,600
¥4,600
¥0
Unico Unico 23050100104 Escaque Trunks Color 63-Green
¥4,600
¥4,600
¥0
Unico Unico 23050100103 Talante Trunks Color 29-Coral
¥4,600
¥4,600
¥0
Save 34%
Clever Clever 1237 Cult Briefs Color White
¥2,700
¥2,700
¥4,100
Clever Clever 1204 Angel Trunks Color Violet
¥4,500
¥4,500
¥0
Clever Clever 1205 Angel Briefs Color Violet
¥4,500
¥4,500
¥0
Save 34%
Clever Clever 1206 Angel Jockstrap Color Violet
¥2,900
¥2,900
¥4,400
Save 34%
Clever Clever 1260 Euphoria Boxer Briefs Color Red
¥3,300
¥3,300
¥5,000
Clever Clever 1235 Fervor Trunks Color Pink
¥5,200
¥5,200
¥0
Clever Clever 1261 Curse Trunks Color Ochre
¥4,500
¥4,500
¥0
Clever Clever 1262 Curse Briefs Color Ochre
¥5,200
¥5,200
¥0
Save 34%
Clever Clever 1217 Daniel Trunks Color Green
¥2,100
¥2,100
¥3,200
Save 34%
Clever Clever 1218 Daniel Briefs Color Green
¥2,300
¥2,300
¥3,500
Clever Clever 1233 Grace Trunks Color Green
¥5,200
¥5,200
¥0
Save 34%
Clever Clever 1234 Grace Briefs Color Green
¥2,700
¥2,700
¥4,100
Clever Clever 1261 Curse Trunks Color Green
¥4,500
¥4,500
¥0