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.
Clever Clever 1522 Navigate Trunks Color Red
¥6,200
¥6,200
¥0
Save 33%
Clever Clever 1523 Navigate Briefs Color Red
¥1,600
¥1,600
¥2,400
Clever Clever 1525 Continental Briefs Color Petrol Blue
¥5,100
¥5,100
¥0
Save 36%
Clever Clever 1528 Arctic Boxer Briefs Color Petrol Blue
¥3,800
¥3,800
¥5,900
Save 36%
Clever Clever 1508 Tethis Trunks Color Lilac
¥2,800
¥2,800
¥4,400
Save 36%
Clever Clever 1509 Tethis Briefs Color Lilac
¥2,800
¥2,800
¥4,400
Save 36%
Clever Clever 1527 Strait Briefs Color Green
¥2,800
¥2,800
¥4,400
Save 36%
Clever Clever 1530 Glacier Bikini Color Green
¥3,400
¥3,400
¥5,300
Clever Clever 1522 Navigate Trunks Color Gray
¥6,200
¥6,200
¥0
Save 36%
Clever Clever 1523 Navigate Briefs Color Gray
¥3,200
¥3,200
¥5,000
Save 35%
Clever Clever 1529 Glacier Trunks Color Gray
¥2,200
¥2,200
¥3,400
Clever Clever 1533 Kraken Trunks Color Gray
¥5,100
¥5,100
¥0
Clever Clever 1534 Kraken Briefs Color Gray
¥4,800
¥4,800
¥0
Save 33%
Clever Clever 1527 Strait Briefs Color Dark Blue
¥1,600
¥1,600
¥2,400
Save 36%
Clever Clever 1530 Glacier Bikini Color Dark Blue
¥3,400
¥3,400
¥5,300
Save 36%
Clever Clever 1508 Tethis Trunks Color Blue
¥2,800
¥2,800
¥4,400
Save 36%
Clever Clever 1509 Tethis Briefs Color Blue
¥2,800
¥2,800
¥4,400
Clever Clever 1520 Baltic Swim Trunks Color Blue
¥9,200
¥9,200
¥0
Clever Clever 1528 Arctic Boxer Briefs Color Blue
¥6,500
¥6,500
¥0
Clever Clever 1511 Caspian Trunks Color Black
¥5,500
¥5,500
¥0
Save 36%
Clever Clever 1512 Caspian Briefs Color Black
¥3,200
¥3,200
¥5,000
Save 36%
Clever Clever 1513 Caspian Jockstrap Color Black
¥3,000
¥3,000
¥4,700
Clever Clever 1528 Arctic Boxer Briefs Color Black
¥6,500
¥6,500
¥0
Save 35%
Clever Clever 1532 Swirl Briefs Color Black
¥4,000
¥4,000
¥6,200
Clever Clever 1533 Kraken Trunks Color Black
¥5,100
¥5,100
¥0
Clever Clever 1534 Kraken Briefs Color Black
¥4,800
¥4,800
¥0
Pikante Pikante PIK 1387 Sense Briefs Color Black
¥4,100
¥4,100
¥0
Save 15%
Xtremen Xtremen 91179 Microfiber Bikini Color Silver
¥3,500
¥3,500
¥4,100
Save 35%
Xtremen Xtremen 91170 Printed Trunks Color Leaves
¥2,200
¥2,200
¥3,400
Save 16%
Xtremen Xtremen 91172 Printed Bikini Color Leaves
¥3,200
¥3,200
¥3,800