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.

SOLD OUT
ErgoWear ErgoWear EW1329 MAX XX Boxer Briefs Color Dusty Pink
¥4,100
¥4,100
¥6,300
SOLD OUT
ErgoWear ErgoWear EW1430 GYM Jockstrap Color Cobalt Blue
¥3,600
¥3,600
¥5,500
SALE
ErgoWear ErgoWear EW1400 GYM Jockstrap Color Burgundy
¥3,600
¥3,600
¥5,500
ErgoWear ErgoWear EW1431 GYM Jockstrap Color Black
¥5,500
¥5,500
¥0
SALE
ErgoWear ErgoWear EW1374 SLK Boxer Briefs Color Calypso
¥4,000
¥4,000
¥6,200
ErgoWear ErgoWear EW1397 MAX Trunks Color Purple
¥5,600
¥5,600
¥0
SOLD OUT
ErgoWear ErgoWear EW1398 MAX Boxer Briefs Color Purple
¥4,100
¥4,100
¥6,300
ErgoWear ErgoWear EW1393 MAX Trunks Color Light Gray
¥5,600
¥5,600
¥0
SALE
ErgoWear ErgoWear EW1394 MAX Boxer Briefs Color Light Gray
¥4,100
¥4,100
¥6,300
SALE
ErgoWear ErgoWear EW1385 MAX Trunks Color Electric Green
¥3,600
¥3,600
¥5,500
SOLD OUT
ErgoWear ErgoWear EW1386 MAX Boxer Briefs Color Electric Green
¥4,100
¥4,100
¥6,300
SOLD OUT
ErgoWear ErgoWear EW1389 MAX Trunks Color Black
¥3,600
¥3,600
¥5,500
SOLD OUT
ErgoWear ErgoWear EW1390 MAX Boxer Briefs Color Black
¥4,100
¥4,100
¥6,300
SOLD OUT
ErgoWear ErgoWear EW0771 MAX ULTRA Trunks Color White
¥3,600
¥3,600
¥5,500
SALE
ErgoWear ErgoWear EW1446 MAX SP Trunks Color Silver Gray
¥4,000
¥4,000
¥6,200
ErgoWear ErgoWear EW1447 MAX SP Boxer Briefs Color Silver Gray
¥6,900
¥6,900
¥0
SOLD OUT
ErgoWear ErgoWear EW0776 MAX ULTRA Trunks Color Navy
¥3,600
¥3,600
¥5,600
SOLD OUT
ErgoWear ErgoWear EW0777 MAX ULTRA Boxer Briefs Color Navy
¥4,100
¥4,100
¥6,300
SALE
ErgoWear ErgoWear EW0780 MAX ULTRA Trunks Color Burgundy
¥3,600
¥3,600
¥5,500
SALE
ErgoWear ErgoWear EW0781 MAX ULTRA Boxer Briefs Color Burgundy
¥4,100
¥4,100
¥6,300
SOLD OUT
ErgoWear ErgoWear EW0765 MAX ULTRA Trunks Color Black
¥3,600
¥3,600
¥5,600
SALE
ErgoWear ErgoWear EW1460 MAX SE Jockstrap Color Blue
¥3,600
¥3,600
¥5,500
SALE
ErgoWear ErgoWear EW1462 MAX SE Bikini Color Blue
¥3,500
¥3,500
¥5,300
SALE
ErgoWear ErgoWear EW1455 MAX SE Jockstrap Color Black
¥3,600
¥3,600
¥5,500
SOLD OUT
ErgoWear ErgoWear EW1457 MAX SE Bikini Color Black
¥3,500
¥3,500
¥5,300
SOLD OUT
ErgoWear ErgoWear EW1459 MAX SE Boxer Briefs Color Black
¥4,100
¥4,100
¥6,300
SALE
ErgoWear ErgoWear EW1465 MAX SE Jockstrap Color Aqua
¥3,600
¥3,600
¥5,500
SOLD OUT
ErgoWear ErgoWear EW1469 MAX SE Boxer Briefs Color Aqua
¥4,200
¥4,200
¥6,400
ErgoWear ErgoWear EW1402 FEEL XX Briefs Color Raspberry
¥5,800
¥5,800
¥0
SALE
ErgoWear ErgoWear EW1403 FEEL XX Trunks Color Raspberry
¥4,100
¥4,100
¥6,200