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 34%
Clever Clever 1306 Tribe Trunks Color Beige
¥3,800
¥3,800
¥5,800
Save 15%
Xtremen Xtremen 91154 Tulle mesh Trunks Color Red
¥3,400
¥3,400
¥4,000
Save 15%
Xtremen Xtremen 91154 Tulle mesh Trunks Color Navy
¥3,400
¥3,400
¥4,000
SOLD OUT
Xtremen Xtremen 91165 Foil Jockstrap Color Black
¥1,700
¥1,700
¥2,500
SOLD OUT
ErgoWear ErgoWear EW1455 MAX SE Jockstrap Color Black
¥1,700
¥1,700
¥2,500
Save 32%
JOR JOR 1829 Dante Jockstrap Color Yellow
¥1,700
¥1,700
¥2,500
Save 35%
JOR JOR 1840 Nitro Trunks Color White
¥3,000
¥3,000
¥4,600
Save 32%
JOR JOR 1841 Nitro Bikini Color White
¥1,700
¥1,700
¥2,500
Save 32%
JOR JOR 1842 Nitro Jockstrap Color White
¥1,700
¥1,700
¥2,500
Save 15%
JOR JOR 1846 Ares Bikini Color White
¥4,000
¥4,000
¥4,700
Save 33%
JOR JOR 1847 Ares Jockstrap Color White
¥2,800
¥2,800
¥4,200
Save 35%
JOR JOR 1860 Element Trunks Color Terracotta
¥3,000
¥3,000
¥4,600
Save 32%
JOR JOR 1861 Element Briefs Color Terracotta
¥1,700
¥1,700
¥2,500
Save 32%
JOR JOR 1862 Element Jockstrap Color Terracotta
¥1,700
¥1,700
¥2,500
Save 32%
JOR JOR 1838 Daily Jockstrap Color Purple
¥1,700
¥1,700
¥2,500
Save 32%
JOR JOR 1860 Element Trunks Color Petrol
¥1,700
¥1,700
¥2,500
Save 14%
JOR JOR 1861 Element Briefs Color Petrol
¥4,300
¥4,300
¥5,000
Save 15%
JOR JOR 1854 York Bikini Color Orange
¥4,000
¥4,000
¥4,700
Save 32%
JOR JOR 1860 Element Trunks Color Nude
¥1,700
¥1,700
¥2,500
Save 35%
JOR JOR 1861 Element Briefs Color Nude
¥3,000
¥3,000
¥4,600
Save 32%
JOR JOR 1862 Element Jockstrap Color Nude
¥1,700
¥1,700
¥2,500
Save 32%
JOR JOR 1854 York Bikini Color Neon
¥1,700
¥1,700
¥2,500
Save 32%
JOR JOR 1835 Daily Trunks Color Mint
¥1,700
¥1,700
¥2,500
Save 35%
JOR JOR 1837 Daily Bikini Color Mint
¥3,000
¥3,000
¥4,600
Save 33%
JOR JOR 1838 Daily Jockstrap Color Mint
¥2,800
¥2,800
¥4,200
Save 32%
JOR JOR 1827 Garoto Bikini Color Green
¥1,700
¥1,700
¥2,500
SOLD OUT
JOR JOR 1828 Dante Bikini Color Green
¥1,700
¥1,700
¥2,500
Save 32%
JOR JOR 1829 Dante Jockstrap Color Green
¥1,700
¥1,700
¥2,500
Save 32%
JOR JOR 1827 Garoto Bikini Color Gray
¥1,700
¥1,700
¥2,500
Save 35%
JOR JOR 1837 Daily Bikini Color Gray
¥3,000
¥3,000
¥4,600