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 RS069 Jockstrap Color Black
¥4,400
¥4,400
¥6,800
Save 33%
Roger Smuth Roger Smuth RS066 Jockstrap Color Black
¥1,600
¥1,600
¥2,400
Save 16%
Roger Smuth Roger Smuth RS068 Thongs Color White
¥3,200
¥3,200
¥3,800
Save 35%
Unico Unico 22120100206 Profundo M22 Boxer Briefs Color 82-Dark Blue
¥3,200
¥3,200
¥4,900
Save 14%
Unico Unico 22120100212 Lustre M22 Boxer Briefs Color 00-White
¥4,200
¥4,200
¥4,900
Save 14%
Unico Unico 22120100210 Cardenal A22 Boxer Briefs Color 82-Dark Blue
¥4,200
¥4,200
¥4,900
Save 35%
Unico Unico 22120201114 Nebuloso M22 Briefs Color 99-Black
¥2,600
¥2,600
¥4,000
Save 33%
Unico Unico 22120100113 Cardenal M22 Trunks Color 82-Dark Blue
¥3,000
¥3,000
¥4,500
Save 14%
Unico Unico 22120100205 Cristalino M22 Boxer Briefs Color 00-White
¥4,200
¥4,200
¥4,900
Save 33%
Unico Unico 22120201101 Cristalino A22 Briefs Color 00-White
¥1,600
¥1,600
¥2,400
Save 14%
Unico Unico 22120100213 Cardenal M22 Boxer Briefs Color 82-Dark Blue
¥4,200
¥4,200
¥4,900
Save 14%
Unico Unico 22120100211 Nebuloso A22 Boxer Briefs Color 99-Black
¥4,200
¥4,200
¥4,900
Save 14%
Unico Unico 22120100202 Profundo A22 Boxer Briefs Color 82-Dark Blue
¥4,200
¥4,200
¥4,900
Save 14%
Unico Unico 22120100204 Asfalto A22 Boxer Briefs Color 96-Dark Gray
¥4,200
¥4,200
¥4,900
Save 15%
Clever Clever 0872 Latin Trunks Color Dark Blue
¥3,500
¥3,500
¥4,100
Save 16%
Clever Clever 0884 Caribbean Briefs Color Black
¥3,200
¥3,200
¥3,800
Save 33%
Xtremen Xtremen 91111 Super Shine Jockstrap Color Turquoise
¥1,600
¥1,600
¥2,400
Save 33%
Xtremen Xtremen 91111 Super Shine Jockstrap Color Black
¥1,600
¥1,600
¥2,400
Save 33%
Clever Clever 0947 Simple Jockstrap Color Gray
¥1,600
¥1,600
¥2,400
Save 35%
Clever Clever 0947 Simple Jockstrap Color Grape
¥2,800
¥2,800
¥4,300
Save 33%
Clever Clever 0952 Utopia Bikini Color Black
¥1,600
¥1,600
¥2,400
Save 35%
Clever Clever 0951 Primal Jockstrap Color Black
¥2,800
¥2,800
¥4,300
Save 35%
Clever Clever 0952 Utopia Bikini Color White
¥3,200
¥3,200
¥4,900
Save 33%
Pikante Pikante PIK 0982 Praia Jockstrap Color Black
¥1,600
¥1,600
¥2,400
Save 35%
Pikante Pikante PIK 0979 Angola Jockstrap Color Pink
¥2,400
¥2,400
¥3,700
Save 35%
Pikante Pikante PIK 0987 Abuya Garter Jockstrap Color Black
¥4,400
¥4,400
¥6,800
Save 35%
Pikante Pikante PIK 0979 Angola Jockstrap Color Green
¥2,400
¥2,400
¥3,700
Save 35%
Pikante Pikante PIK 0985 Hare Garter Jockstrap Color Blue
¥4,000
¥4,000
¥6,200
Save 33%
Pikante Pikante PIK 0992 Yuba Jockstrap Color Beige
¥1,600
¥1,600
¥2,400
Save 33%
Pikante Pikante PIK 0981 Argelia Jockstrap Color White
¥1,600
¥1,600
¥2,400