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.

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ErgoWear ErgoWear EW1477 MAX COTTON Boxer Briefs Color White
Regular Price
¥1,600
Sale Price
¥1,600
Regular Price
¥2,400
Unit Price
per 
Save 14%
Male Power Male Power 591-266 Leather Gemini Harness Color Black
Regular Price
¥5,500
Sale Price
¥5,500
Regular Price
¥6,400
Unit Price
per 
Save 16%
Male Power Male Power 590-266 Leather Aries Harness Color Black
Regular Price
¥4,900
Sale Price
¥4,900
Regular Price
¥5,800
Unit Price
per 
Save 15%
Male Power Male Power PAK-154 Fetish Uranus Jockstrap Color Black
Regular Price
¥4,700
Sale Price
¥4,700
Regular Price
¥5,500
Unit Price
per 
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Male Power Male Power 596-266 PU Leather Leo Color Black-Red
Regular Price
¥4,000
Sale Price
¥4,000
Regular Price
¥6,100
Unit Price
per 
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Male Power Male Power 492-280 Sassy Lace Bikini Solid Pouch Color Red
Regular Price
¥2,600
Sale Price
¥2,600
Regular Price
¥3,100
Unit Price
per 
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Unico Unico 23050201101 Efige Briefs Color 63-Turquoise
Regular Price
¥3,000
Sale Price
¥3,000
Regular Price
¥4,600
Unit Price
per 
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Unico Unico 23050201103 Talante Briefs Color 29-Coral
Regular Price
¥1,600
Sale Price
¥1,600
Regular Price
¥2,400
Unit Price
per 
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CandyMan CandyMan 99242 Jockstrap Color Black
Regular Price
¥3,200
Sale Price
¥3,200
Regular Price
¥3,800
Unit Price
per 
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CandyMan CandyMan 99312 Jockstrap Color Burgundy
Regular Price
¥2,700
Sale Price
¥2,700
Regular Price
¥3,100
Unit Price
per 
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CandyMan CandyMan 99393 Boxer Briefs Color Black
Regular Price
¥3,400
Sale Price
¥3,400
Regular Price
¥4,000
Unit Price
per 
Doreanse Doreanse 1395-RED Aire Bikini Color Red
Regular Price
¥3,100
Sale Price
¥3,100
Regular Price
¥0
Unit Price
per 
Doreanse Doreanse 1377-FUC Boost Cheeky Brief Color Fuchsia
Regular Price
¥3,100
Sale Price
¥3,100
Regular Price
¥0
Unit Price
per 
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Papi Papi 705910-001 3PK 1X1 Rib Jockstrap Color Black
Regular Price
¥1,600
Sale Price
¥1,600
Regular Price
¥2,400
Unit Price
per 
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Papi Papi 980403-950 3PK Cotton Stretch Brief Color Red-Gray-Black
Regular Price
¥1,600
Sale Price
¥1,600
Regular Price
¥2,400
Unit Price
per 
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Papi Papi 980911-950 3PK Cotton Stretch Jockstrap Color Red-Gray-Black
Regular Price
¥1,600
Sale Price
¥1,600
Regular Price
¥2,400
Unit Price
per 
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Papi Papi 705910-999 3PK 1X1 Rib Jockstrap Color Black-Red-Turquoise
Regular Price
¥1,600
Sale Price
¥1,600
Regular Price
¥2,400
Unit Price
per 
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CandyMan CandyMan 99439 Floral Briefs Color Blue
Regular Price
¥1,600
Sale Price
¥1,600
Regular Price
¥2,400
Unit Price
per 
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CandyMan CandyMan 99466X Lace Briefs Color Black
Regular Price
¥1,600
Sale Price
¥1,600
Regular Price
¥2,400
Unit Price
per 
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CandyMan CandyMan 99468X Garter Briefs Color Black
Regular Price
¥1,600
Sale Price
¥1,600
Regular Price
¥2,400
Unit Price
per 
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CandyMan CandyMan 99495 Mesh Briefs Color Black
Regular Price
¥1,800
Sale Price
¥1,800
Regular Price
¥2,800
Unit Price
per 
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CandyMan CandyMan 99478 Jockstrap Thongs Color Black
Regular Price
¥2,900
Sale Price
¥2,900
Regular Price
¥3,400
Unit Price
per 
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Papi Papi UMPA006 2PK Jockstrap Color Black-Blue
Regular Price
¥1,600
Sale Price
¥1,600
Regular Price
¥2,400
Unit Price
per 
Papi Papi UMPA006 2PK Jockstrap Color Black-Gray
Regular Price
¥800
Sale Price
¥800
Regular Price
¥0
Unit Price
per 
Papi Papi UMPA006 2PK Jockstrap Color Black-Orange
Regular Price
¥800
Sale Price
¥800
Regular Price
¥0
Unit Price
per 
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CandyMan CandyMan 99550 Lace Garter-Jockstrap Outfit Color Red
Regular Price
¥5,400
Sale Price
¥5,400
Regular Price
¥6,400
Unit Price
per 
Save 13%
CandyMan CandyMan 99538 Lace Jockstrap Color Red
Regular Price
¥2,600
Sale Price
¥2,600
Regular Price
¥3,000
Unit Price
per 
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CandyMan CandyMan 99535 Bow Jockstrap Color Burgundy
Regular Price
¥2,600
Sale Price
¥2,600
Regular Price
¥3,000
Unit Price
per 
Save 13%
CandyMan CandyMan 99538 Lace Jockstrap Color Black
Regular Price
¥2,600
Sale Price
¥2,600
Regular Price
¥3,000
Unit Price
per 
Save 16%
CandyMan CandyMan 99550 Lace Garter-Jockstrap Outfit Color Black
Regular Price
¥5,400
Sale Price
¥5,400
Regular Price
¥6,400
Unit Price
per