Men's Underwear
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.
SALE
JUSTIN+SIMON
JUSTIN+SIMON XSJ08 Classic Trunks Color Royal Blue
- Regular Price
- ¥3,300
- Sale Price
- ¥3,300
- Regular Price
-
¥3,900
- Unit Price
- per
SALE
JUSTIN+SIMON
JUSTIN+SIMON XSJ22 Cheek Briefs Color Red
- Regular Price
- ¥3,500
- Sale Price
- ¥3,500
- Regular Price
-
¥4,100
- Unit Price
- per
SALE
JUSTIN+SIMON
JUSTIN+SIMON XSJ22 Cheek Briefs Color Purple
- Regular Price
- ¥3,500
- Sale Price
- ¥3,500
- Regular Price
-
¥4,100
- Unit Price
- per
SALE
JUSTIN+SIMON
JUSTIN+SIMON XSJ22 Cheek Briefs Color Pink
- Regular Price
- ¥3,500
- Sale Price
- ¥3,500
- Regular Price
-
¥4,100
- Unit Price
- per
SALE
JUSTIN+SIMON
JUSTIN+SIMON XSJ22 Cheek Briefs Color Opal Green
- Regular Price
- ¥3,500
- Sale Price
- ¥3,500
- Regular Price
-
¥4,100
- Unit Price
- per
SALE
JUSTIN+SIMON
JUSTIN+SIMON XSJ22 Cheek Briefs Color Neon Green
- Regular Price
- ¥3,500
- Sale Price
- ¥3,500
- Regular Price
-
¥4,100
- Unit Price
- per
SALE
JUSTIN+SIMON
JUSTIN+SIMON XSJ22 Cheek Briefs Color Navy
- Regular Price
- ¥3,500
- Sale Price
- ¥3,500
- Regular Price
-
¥4,100
- Unit Price
- per
SALE
JUSTIN+SIMON
JUSTIN+SIMON XSJ22 Cheek Briefs Color Metal Green
- Regular Price
- ¥3,500
- Sale Price
- ¥3,500
- Regular Price
-
¥4,100
- Unit Price
- per
SALE
JUSTIN+SIMON
JUSTIN+SIMON XSJ08 Classic Trunks Color Hot Pink
- Regular Price
- ¥3,300
- Sale Price
- ¥3,300
- Regular Price
-
¥3,900
- Unit Price
- per
SALE
JUSTIN+SIMON
JUSTIN+SIMON XSJ08 Classic Trunks Color Gray
- Regular Price
- ¥3,300
- Sale Price
- ¥3,300
- Regular Price
-
¥3,900
- Unit Price
- per
SALE
JUSTIN+SIMON
JUSTIN+SIMON XSJ08 Classic Trunks Color Coral
- Regular Price
- ¥3,300
- Sale Price
- ¥3,300
- Regular Price
-
¥3,900
- Unit Price
- per
SALE
JUSTIN+SIMON
JUSTIN+SIMON XSJ08 Classic Trunks Color Black
- Regular Price
- ¥3,300
- Sale Price
- ¥3,300
- Regular Price
-
¥3,900
- Unit Price
- per
SALE
JUSTIN+SIMON
JUSTIN+SIMON XSJ22 Cheek Briefs Color Black
- Regular Price
- ¥3,500
- Sale Price
- ¥3,500
- Regular Price
-
¥4,100
- Unit Price
- per
SALE
HAWAI
HAWAI 42152 Solid Lace Briefs Color Fuchsia
- Regular Price
- ¥4,000
- Sale Price
- ¥4,000
- Regular Price
-
¥4,700
- Unit Price
- per
SALE
HAWAI
HAWAI 42156 Solid Lace Briefs Color Fuchsia
- Regular Price
- ¥2,400
- Sale Price
- ¥2,400
- Regular Price
-
¥3,600
- Unit Price
- per
HAWAI
HAWAI 42255 Microfiber Trunks Color Sea Green
- Regular Price
- ¥1,400
- Sale Price
- ¥1,400
- Regular Price
-
¥0
- Unit Price
- per
SOLD OUT
HAWAI
HAWAI 42268 Microfiber Jockstrap Color Neon Green
- Regular Price
- ¥1,900
- Sale Price
- ¥1,900
- Regular Price
-
¥3,000
- Unit Price
- per
SALE
HAWAI
HAWAI 42255 Microfiber Trunks Color Magenta
- Regular Price
- ¥2,600
- Sale Price
- ¥2,600
- Regular Price
-
¥3,900
- Unit Price
- per
SALE
HAWAI
HAWAI 42255 Microfiber Trunks Color Hazelnut
- Regular Price
- ¥2,600
- Sale Price
- ¥2,600
- Regular Price
-
¥3,900
- Unit Price
- per
SALE
HAWAI
HAWAI 42258 Microfiber Jockstrap Color Hazelnut
- Regular Price
- ¥1,900
- Sale Price
- ¥1,900
- Regular Price
-
¥3,000
- Unit Price
- per
HAWAI
HAWAI 42293 Microfiber Trunks Color Gray
- Regular Price
- ¥1,400
- Sale Price
- ¥1,400
- Regular Price
-
¥0
- Unit Price
- per
SALE
HAWAI
HAWAI 42296 Microfiber Jockstrap Color Gray
- Regular Price
- ¥1,900
- Sale Price
- ¥1,900
- Regular Price
-
¥3,000
- Unit Price
- per
SALE
HAWAI
HAWAI 42255 Microfiber Trunks Color Fuchsia
- Regular Price
- ¥2,600
- Sale Price
- ¥2,600
- Regular Price
-
¥3,900
- Unit Price
- per
SALE
HAWAI
HAWAI 42293 Microfiber Trunks Color Dark Blue
- Regular Price
- ¥3,700
- Sale Price
- ¥3,700
- Regular Price
-
¥4,400
- Unit Price
- per
SALE
HAWAI
HAWAI 42296 Microfiber Jockstrap Color Dark Blue
- Regular Price
- ¥1,900
- Sale Price
- ¥1,900
- Regular Price
-
¥3,000
- Unit Price
- per
SOLD OUT
HAWAI
HAWAI 42307 Microfiber Jockstrap Color Green
- Regular Price
- ¥1,900
- Sale Price
- ¥1,900
- Regular Price
-
¥3,000
- Unit Price
- per
SALE
HAWAI
HAWAI 42306 Tummy Control Boxer Briefs Color Black
- Regular Price
- ¥1,700
- Sale Price
- ¥1,700
- Regular Price
-
¥2,600
- Unit Price
- per
Male Power
Male Power 147-288 Show Stopper Mini Short Color Silver Mesh Dot
- Regular Price
- ¥4,600
- Sale Price
- ¥4,600
- Regular Price
-
- Unit Price
- per
Male Power
Male Power 131-293 Your Lace Or Mine Pouch Short Color Red-White-Blue
- Regular Price
- ¥3,300
- Sale Price
- ¥3,300
- Regular Price
-
- Unit Price
- per
Male Power
Male Power 145-294 Hazy Dayz Pouch Short Color Pot Leaf
- Regular Price
- ¥3,300
- Sale Price
- ¥3,300
- Regular Price
-
- Unit Price
- per