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.
Roger Smuth Roger Smuth RS086 Jock-Thong Color Green
¥6,800
¥6,800
¥0
Roger Smuth Roger Smuth RS087 Ball lifter Color Green
¥4,900
¥4,900
¥0
Roger Smuth Roger Smuth RS086 Jock-Thong Color Burgundy
¥6,800
¥6,800
¥0
Roger Smuth Roger Smuth RS087 Ball lifter Color Burgundy
¥4,900
¥4,900
¥0
Roger Smuth Roger Smuth RS088 Jock-Thong Color Burgundy
¥6,500
¥6,500
¥0
Roger Smuth Roger Smuth RS087 Ball lifter Color Blue
¥4,900
¥4,900
¥0
Roger Smuth Roger Smuth RS086 Jock-Thong Color Black
¥6,800
¥6,800
¥0
Roger Smuth Roger Smuth RS088 Jock-Thong Color Black
¥6,500
¥6,500
¥0
Roger Smuth Roger Smuth RS089 Ball lifter Color Black
¥3,900
¥3,900
¥0
Save 15%
ErgoWear ErgoWear EW1248 FEEL GR8 Boxer Briefs Color Black
¥5,200
¥5,200
¥6,100
Save 14%
ErgoWear ErgoWear EW1299 MAX XX Bikini Color Aqua
¥4,400
¥4,400
¥5,100
Save 16%
ErgoWear ErgoWear EW1429 GYM Jockstrap Color Neon Yellow
¥4,300
¥4,300
¥5,100
Save 16%
ErgoWear ErgoWear EW1431 GYM Jockstrap Color Black
¥4,300
¥4,300
¥5,100
Save 15%
ErgoWear ErgoWear EW1406 FEEL XX Briefs Color Black
¥4,500
¥4,500
¥5,300
Save 15%
ErgoWear ErgoWear EW1408 FEEL XX Boxer Briefs Color Black
¥5,500
¥5,500
¥6,500
Save 15%
ErgoWear ErgoWear EW1476 MAX COTTON Trunks Color White
¥4,600
¥4,600
¥5,400
Save 15%
ErgoWear ErgoWear EW1598 X4D Boxer Briefs Color Smoke Blue
¥6,000
¥6,000
¥7,100
Save 15%
ErgoWear ErgoWear EW1594 X4D Boxer Briefs Color Silver Gray
¥6,000
¥6,000
¥7,100
Save 15%
ErgoWear ErgoWear EW1472 MAX COTTON Trunks Color Navy Blue
¥4,600
¥4,600
¥5,400
Save 15%
ErgoWear ErgoWear EW1480 MAX COTTON Trunks Color Garnet
¥4,600
¥4,600
¥5,400
Save 15%
ErgoWear ErgoWear EW1589 X4D Trunks Color Dusty Pink
¥5,000
¥5,000
¥5,900
Save 15%
ErgoWear ErgoWear EW1484 MAX COTTON Trunks Color Black
¥4,600
¥4,600
¥5,400
Save 15%
ErgoWear ErgoWear EW1602 X4D Boxer Briefs Color Navy Blue
¥6,000
¥6,000
¥7,100
Save 16%
ErgoWear ErgoWear EW1498 HIP Trunks Color Dark Green
¥3,100
¥3,100
¥3,700
Save 16%
ErgoWear ErgoWear EW1495 HIP Trunks Color Dark Gray
¥3,100
¥3,100
¥3,700
Save 16%
ErgoWear ErgoWear EW1501 HIP Trunks Color Burgundy
¥3,100
¥3,100
¥3,700
Save 15%
ErgoWear ErgoWear EW1636 MAX XX Boxer Briefs Color Dark Blue
¥5,000
¥5,000
¥5,900
Save 15%
ErgoWear ErgoWear EW1623 MAX XX Trunks Color Burgundy
¥4,500
¥4,500
¥5,300
Save 15%
ErgoWear ErgoWear EW1624 MAX XX Boxer Briefs Color Burgundy
¥5,000
¥5,000
¥5,900
Save 15%
ErgoWear ErgoWear EW1619 MAX XX Trunks Color Black
¥4,500
¥4,500
¥5,300