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.

SALE
BiteWear BiteWear BW2023104 Sassy Peach Jockstrap Color Green
¥4,100
¥4,100
¥4,800
SALE
BiteWear BiteWear BW2023106 Intense Melon Briefs Color Green
¥4,100
¥4,100
¥4,800
SALE
BiteWear BiteWear BW2023107 Bright Kumquat Trunks Color Green
¥4,100
¥4,100
¥4,800
SALE
BiteWear BiteWear BW2023108 Tuxedo Banana Jockstrap Color Green
¥4,100
¥4,100
¥4,800
SALE
BiteWear BiteWear BW2023112 Dirty Plum Jockstrap Color Green
¥4,100
¥4,100
¥4,800
SALE
BiteWear BiteWear BW2023101 Discreet Apricot Jockstrap Color Fuchsia
¥4,100
¥4,100
¥4,800
SALE
BiteWear BiteWear BW2023104 Sassy Peach Jockstrap Color Fuchsia
¥4,100
¥4,100
¥4,800
SALE
BiteWear BiteWear BW2023107 Bright Kumquat Trunks Color Fuchsia
¥4,100
¥4,100
¥4,800
SALE
BiteWear BiteWear BW2023108 Tuxedo Banana Jockstrap Color Fuchsia
¥4,100
¥4,100
¥4,800
SALE
BiteWear BiteWear BW2023112 Dirty Plum Jockstrap Color Fuchsia
¥4,100
¥4,100
¥4,800
SALE
BiteWear BiteWear BW2023110 Sweet Kiwi Briefs Color Black
¥4,100
¥4,100
¥4,800
SALE
Doreanse Doreanse 1781-WHT Naked Mini Trunk Color White
¥1,900
¥1,900
¥2,900
SALE
Pikante Pikante PIK 1289 Itadaki Briefs Color Black
¥5,800
¥5,800
¥6,900
SALE
Pikante Pikante PIK 1291 Sziget Briefs Color Black
¥5,000
¥5,000
¥5,800
SALE
Pikante Pikante PIK 1294 Greenman Jockstrap Color Black
¥8,500
¥8,500
¥13,000
SALE
Pikante Pikante PIK 1290 Bahidora Harness Color Black
¥4,400
¥4,400
¥5,200
SALE
PLURAL PLURAL PL004 Briefs Color Pink
¥4,000
¥4,000
¥4,700
SALE
PLURAL PLURAL PL006 Briefs Color Mint Green
¥4,000
¥4,000
¥4,700
SALE
PLURAL PLURAL PL004 Briefs Color Black
¥4,000
¥4,000
¥4,700
SALE
PLURAL PLURAL PL006 Briefs Color Black
¥4,000
¥4,000
¥4,700
SALE
HAWAI HAWAI 51903 Swim Trunks Color Gray
¥9,100
¥9,100
¥14,000
SALE
HAWAI HAWAI 51904 Swim Trunks Color Coral
¥1,600
¥1,600
¥2,400
SALE
HAWAI HAWAI 51904 Swim Trunks Color Blue
¥1,600
¥1,600
¥2,400
SALE
HAWAI HAWAI 51903 Swim Trunks Color Blue
¥9,100
¥9,100
¥14,000
SOLD OUT
HAWAI HAWAI 52135 Solid Athletic Pants Color Black
¥7,400
¥7,400
¥11,300
SOLD OUT
HAWAI HAWAI 52145 Solid Athletic Pants Color Black
¥5,000
¥5,000
¥9,900
SALE
HAWAI HAWAI 4986 Solid Athletic Trunks Color Petrol
¥2,000
¥2,000
¥3,100
SALE
HAWAI HAWAI 4986 Solid Athletic Trunks Color Royal Blue
¥1,600
¥1,600
¥2,400
SALE
HAWAI HAWAI 52137 Solid Athletic Pants Color Black
¥7,400
¥7,400
¥11,300
SALE
HAWAI HAWAI 4986 Solid Athletic Trunks Color Green
¥2,000
¥2,000
¥3,100