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%
Xtremen Xtremen 91125 Mesh Trunks Color Black
¥1,600
¥1,600
¥2,400
Save 33%
Xtremen Xtremen 91135 Mesh Trunks Color Black
¥1,600
¥1,600
¥2,400
Save 33%
Xtremen Xtremen 91138 Mesh Briefs Color Black
¥1,600
¥1,600
¥2,400
Save 16%
Xtremen Xtremen 91140 Ultra-soft Trunks Color Black
¥2,600
¥2,600
¥3,100
Save 35%
Xtremen Xtremen 91128 Snake print Jockstrap Color Red
¥2,200
¥2,200
¥3,400
Save 33%
Xtremen Xtremen 91134 Mesh Jockstrap Color Red
¥1,600
¥1,600
¥2,400
Save 33%
Xtremen Xtremen 91133 Mesh Briefs Color Petrol
¥1,600
¥1,600
¥2,400
Save 35%
Xtremen Xtremen 91133 Mesh Briefs Color Fuchsia
¥2,800
¥2,800
¥4,300
Save 35%
Roger Smuth Roger Smuth RS082 Jockstrap Color White
¥4,200
¥4,200
¥6,500
Save 35%
Roger Smuth Roger Smuth RS080 Jockstrap Color Black
¥4,200
¥4,200
¥6,500
Save 35%
Roger Smuth Roger Smuth RS082 Jockstrap Color Black
¥4,200
¥4,200
¥6,500
Save 16%
Xtremen Xtremen 91187 Tulle Mesh Bikini Color Green
¥3,200
¥3,200
¥3,800
Save 35%
Xtremen Xtremen 91188 Tulle Mesh Trunks Color Green
¥2,200
¥2,200
¥3,400
Save 16%
Xtremen Xtremen 91186 Mesh Bikini Color Gray
¥3,200
¥3,200
¥3,800
Save 14%
Xtremen Xtremen 91180 Microfiber Trunks Color Gold
¥3,800
¥3,800
¥4,400
Save 16%
Xtremen Xtremen 91181 Microfiber Trunks Color Black
¥3,200
¥3,200
¥3,800
Save 16%
Xtremen Xtremen 91183 Microfiber Bikini Color Black
¥3,200
¥3,200
¥3,800
Save 16%
Xtremen Xtremen 91186 Mesh Bikini Color Black
¥3,200
¥3,200
¥3,800
Save 35%
Xtremen Xtremen 91187 Tulle Mesh Bikini Color Black
¥2,200
¥2,200
¥3,400
Save 35%
Xtremen Xtremen 91188 Tulle Mesh Trunks Color Black
¥2,200
¥2,200
¥3,400
Save 35%
JOR JOR 2054 Daily Jockstrap Color Yellow
¥2,800
¥2,800
¥4,300
Save 35%
JOR JOR 2062 Sailor Briefs Color White
¥2,600
¥2,600
¥4,000
Save 35%
JOR JOR 2047 Element Briefs Color Red
¥2,800
¥2,800
¥4,300
Save 35%
JOR JOR 2049 Element Jockstrap Color Red
¥2,600
¥2,600
¥4,000
Save 14%
JOR JOR 2062 Sailor Briefs Color Red
¥3,800
¥3,800
¥4,400
Save 35%
JOR JOR 2054 Daily Jockstrap Color Orange
¥2,800
¥2,800
¥4,300
Save 35%
JOR JOR 2057 College Briefs Color Blue
¥2,800
¥2,800
¥4,300
Save 35%
JOR JOR 2059 College Jockstrap Color Blue
¥2,400
¥2,400
¥3,700
Save 14%
JOR JOR 2062 Sailor Briefs Color Blue
¥3,800
¥3,800
¥4,400
Save 35%
JOR JOR 2047 Element Briefs Color Black
¥2,800
¥2,800
¥4,300