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%
Hidden Hidden 962 Jockstrap-Bikini Color Black
¥1,600
¥1,600
¥2,400
Save 33%
Pikante Pikante PIK 8728 Pubs Briefs Color White
¥1,600
¥1,600
¥2,400
Pikante Pikante PIK 8728 Pubs Briefs Color Black
¥1,000
¥1,000
¥0
Roger Smuth Roger Smuth RS037 Harness Color Black
¥1,000
¥1,000
¥0
Roger Smuth Roger Smuth RS039 Jockstrap Color White
¥1,100
¥1,100
¥0
Save 33%
Roger Smuth Roger Smuth RS031 Jockstrap Color Black
¥1,600
¥1,600
¥2,400
Save 33%
Roger Smuth Roger Smuth RS031 Jockstrap Color Burgundy
¥1,600
¥1,600
¥2,400
Save 15%
Roger Smuth Roger Smuth RS038 Harness Color Black
¥2,300
¥2,300
¥2,700
Save 33%
Roger Smuth Roger Smuth RS033 Jockstrap Color Gray
¥1,600
¥1,600
¥2,400
Save 33%
Roger Smuth Roger Smuth RS033 Jockstrap Color Black
¥1,600
¥1,600
¥2,400
Save 33%
Roger Smuth Roger Smuth RS039 Jockstrap Color Black
¥1,600
¥1,600
¥2,400
Save 33%
Roger Smuth Roger Smuth RS045 Jockstrap Color Black
¥1,600
¥1,600
¥2,400
Save 35%
Roger Smuth Roger Smuth RS039 Jockstrap Color Burgundy
¥3,400
¥3,400
¥5,200
Save 35%
Roger Smuth Roger Smuth RS045 Jockstrap Color White
¥3,000
¥3,000
¥4,600
Save 16%
Unico Unico 22120100106 Profundo M22 Trunks Color 82-Dark Blue
¥3,800
¥3,800
¥4,500
Save 16%
Unico Unico 22120100112 Lustre M22 Trunks Color 00-White
¥3,800
¥3,800
¥4,500
Save 16%
Unico Unico 22120100103 Intenso A22 Trunks Color 99-Black
¥3,800
¥3,800
¥4,500
Save 16%
Unico Unico 22120100108 Asfalto M22 Trunks Color 96-Dark Gray
¥3,800
¥3,800
¥4,500
Save 16%
Unico Unico 22120100105 Cristalino M22 Trunks Color 00-White
¥3,800
¥3,800
¥4,500
Save 16%
Unico Unico 22120100111 Nebuloso A22 Trunks Color 99-Black
¥3,800
¥3,800
¥4,500
Save 16%
Unico Unico 22120100110 Cardenal A22 Trunks Color 82-Dark Blue
¥3,800
¥3,800
¥4,500
Save 16%
Unico Unico 22120100104 Asfalto A22 Trunks Color 96-Dark Gray
¥3,800
¥3,800
¥4,500
Save 14%
Roger Smuth Roger Smuth RS084 Bikini Color Royal Blue
¥6,000
¥6,000
¥7,000
Save 33%
Roger Smuth Roger Smuth RS085 Bikini Color Lime Green
¥1,600
¥1,600
¥2,400
Save 33%
Roger Smuth Roger Smuth RS085 Bikini Color Fuchsia
¥1,600
¥1,600
¥2,400
Save 33%
PPU PPU 2307 Ball Lifter Jockstrap Color Yellow
¥1,600
¥1,600
¥2,400
Save 16%
PPU PPU 2304 Ball Lifter Jockstrap Color White
¥3,700
¥3,700
¥4,400
Save 15%
PPU PPU 2305 Mesh Jockstrap Color White
¥5,100
¥5,100
¥6,000
Save 15%
PPU PPU 2306 Thong or Jockstrap Color White
¥4,000
¥4,000
¥4,700
Save 14%
PPU PPU 2311 Microfiber Jockstrap Color White
¥4,300
¥4,300
¥5,000