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 33%
Clever Clever 0583-1 Play Briefs Color Green
¥2,400
¥2,400
¥3,600
SOLD OUT
CandyMan CandyMan 99646 Cage Jockstrap Color Black
¥4,900
¥4,900
¥5,800
SOLD OUT
ErgoWear ErgoWear EW1357 MAX XV Bikini Color Light Gray
¥1,700
¥1,700
¥2,500
Save 32%
Pikante Pikante PIK 1021 Rimini Briefs Color Black
¥1,700
¥1,700
¥2,500
Save 15%
Pikante Pikante PIK 1016 Sacer Bikini Color Red
¥4,000
¥4,000
¥4,700
Save 34%
Male Power Male Power 596-266 PU Leather Leo Color Black-Red
¥4,300
¥4,300
¥6,500
SOLD OUT
ErgoWear ErgoWear EW1204 FEEL XV Briefs Color Stonewash
¥1,700
¥1,700
¥2,500
Save 32%
ErgoWear ErgoWear EW1200 FEEL XV Briefs Color White
¥1,700
¥1,700
¥2,500
SOLD OUT
ErgoWear ErgoWear EW1196 FEEL XV Briefs Color Burgundy
¥1,700
¥1,700
¥2,500
Save 35%
Unico Unico 22100100111 Espuma De Mar Trunks Color 90-Printed
¥3,200
¥3,200
¥4,900
Save 14%
Unico Unico 22100100112 Seco Trunks Color 90-Printed
¥4,200
¥4,200
¥4,900
Save 14%
Unico Unico 22100100115 Tartan Trunks Color 90-Printed
¥4,200
¥4,200
¥4,900
Save 14%
Unico Unico 22100100117 Acrilico Trunks Color 90-Printed
¥4,200
¥4,200
¥4,900
Save 35%
Unico Unico 22100100121 Valioso Trunks Color 90-Printed
¥3,200
¥3,200
¥4,900
Save 35%
Unico Unico 22100100113 Lirico Trunks Color 63-Printed
¥3,200
¥3,200
¥4,900
Save 14%
Unico Unico 22100100123 Tintado Trunks Color 63-Printed
¥4,200
¥4,200
¥4,900
Save 32%
Unico Unico 22110201110 Marroqui Briefs Color 63-Printed
¥1,700
¥1,700
¥2,500
Save 32%
Unico Unico 22110201114 Rugoso Briefs Color 5-Printed
¥1,700
¥1,700
¥2,500
SOLD OUT
ErgoWear ErgoWear EW1214 MAX MESH Boxer Briefs Color Cobalt Blue
¥1,700
¥1,700
¥2,500
Save 32%
Clever Clever 1030 Berna Briefs Color White
¥1,700
¥1,700
¥2,500
Save 35%
Clever Clever 1032 Lucerna Trunks Color White
¥3,200
¥3,200
¥4,900
Save 35%
Clever Clever 1027 Zurich Trunks Color Pink
¥3,400
¥3,400
¥5,200
Save 32%
Clever Clever 1041 Zug Trunks Color Fuchsia
¥1,700
¥1,700
¥2,500
Save 35%
Clever Clever 1046 Glaris Jockstrap Color Blue
¥3,000
¥3,000
¥4,600
Save 35%
Clever Clever 1028 Zurich Briefs Color Black
¥3,200
¥3,200
¥4,900
Save 35%
Xtremen Xtremen 41313 Printed Briefs Color Royal
¥1,500
¥1,500
¥2,300
Save 12%
Xtremen Xtremen 41313 Printed Briefs Color Orange
¥2,200
¥2,200
¥2,500
SOLD OUT
Xtremen Xtremen 91130 Printed Jockstrap Color Orange
¥900
¥900
¥0
Save 12%
Xtremen Xtremen 41313 Printed Briefs Color Green
¥2,200
¥2,200
¥2,500
Save 32%
Xtremen Xtremen 91130 Printed Jockstrap Color Green
¥1,700
¥1,700
¥2,500