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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Xtremen Xtremen 91057X-3 3PK Bikini Color Gray-Blue-Pink
Regular Price
£8.00
Sale Price
£8.00
Regular Price
£13.00
Unit Price
per 
Save 33%
HAWAI HAWAI 42308 Microfiber Trunks Color Orange
Regular Price
£16.00
Sale Price
£16.00
Regular Price
£24.00
Unit Price
per 
Save 33%
HAWAI HAWAI 42308 Microfiber Trunks Color Green
Regular Price
£16.00
Sale Price
£16.00
Regular Price
£24.00
Unit Price
per 
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HAWAI HAWAI 42306 Tummy Control Boxer Briefs Color Black
Regular Price
£8.00
Sale Price
£8.00
Regular Price
£13.00
Unit Price
per 
Private Structure Private Structure BAUT4388 Athlete Mini Briefs Color White League
Regular Price
£22.00
Sale Price
£22.00
Regular Price
£0.00
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Private Structure Private Structure BAUT4388 Athlete Mini Briefs Color Red Falcon
Regular Price
£22.00
Sale Price
£22.00
Regular Price
£0.00
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Private Structure Private Structure PBUT4379 Bamboo Trunks Color Olive
Regular Price
£22.00
Sale Price
£22.00
Regular Price
£0.00
Unit Price
per 
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Private Structure Private Structure BAUT4388 Athlete Mini Briefs Color Navy Ranger
Regular Price
£14.00
Sale Price
£14.00
Regular Price
£22.00
Unit Price
per 
Private Structure Private Structure BAUT4389 Athlete Trunks Color Navy Ranger
Regular Price
£22.00
Sale Price
£22.00
Regular Price
£0.00
Unit Price
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Private Structure Private Structure SCUX4070 Classic Trunks Color Baby Blush
Regular Price
£18.00
Sale Price
£18.00
Regular Price
£0.00
Unit Price
per 
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Unico Unico 23080100106 Atlantida Trunks Color 46-Blue
Regular Price
£22.00
Sale Price
£22.00
Regular Price
£26.00
Unit Price
per 
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Unico Unico 23080101102 Escantillon Briefs Color 46-Blue
Regular Price
£17.00
Sale Price
£17.00
Regular Price
£26.00
Unit Price
per 
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Unico Unico 23080100105 Boreal Trunks Color 43-Green
Regular Price
£22.00
Sale Price
£22.00
Regular Price
£26.00
Unit Price
per 
Save 32%
Unico Unico 23080100114 Rayado Trunks Color 43-Blue
Regular Price
£17.00
Sale Price
£17.00
Regular Price
£25.00
Unit Price
per 
SOLD OUT
Clever Clever 1312 Hunch Trunks Color White
Regular Price
£8.00
Sale Price
£8.00
Regular Price
£13.00
Unit Price
per 
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Clever Clever 1316 Urge Briefs Color White
Regular Price
£8.00
Sale Price
£8.00
Regular Price
£13.00
Unit Price
per 
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Clever Clever 1320 Creation Trunks Color Green
Regular Price
£16.00
Sale Price
£16.00
Regular Price
£24.00
Unit Price
per 
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Clever Clever 1321 Creation Bikini Color Green
Regular Price
£16.00
Sale Price
£16.00
Regular Price
£24.00
Unit Price
per 
Save 16%
Clever Clever 1305 Primary Bikini Color Blue
Regular Price
£21.00
Sale Price
£21.00
Regular Price
£25.00
Unit Price
per 
Clever Clever 1314 Hunch Jockstrap Color Black
Regular Price
£5.00
Sale Price
£5.00
Regular Price
£0.00
Unit Price
per 
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Clever Clever 1315 Urge Trunks Color Black
Regular Price
£22.00
Sale Price
£22.00
Regular Price
£34.00
Unit Price
per 
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Clever Clever 1316 Urge Briefs Color Black
Regular Price
£15.00
Sale Price
£15.00
Regular Price
£23.00
Unit Price
per 
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Xtremen Xtremen 91154 Tulle mesh Trunks Color Red
Regular Price
£17.00
Sale Price
£17.00
Regular Price
£20.00
Unit Price
per 
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Xtremen Xtremen 91165 Foil Jockstrap Color Black
Regular Price
£8.00
Sale Price
£8.00
Regular Price
£13.00
Unit Price
per 
SOLD OUT
ErgoWear ErgoWear EW1455 MAX SE Jockstrap Color Black
Regular Price
£8.00
Sale Price
£8.00
Regular Price
£13.00
Unit Price
per 
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JOR JOR 1829 Dante Jockstrap Color Yellow
Regular Price
£8.00
Sale Price
£8.00
Regular Price
£13.00
Unit Price
per 
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JOR JOR 1840 Nitro Trunks Color White
Regular Price
£15.00
Sale Price
£15.00
Regular Price
£23.00
Unit Price
per 
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JOR JOR 1841 Nitro Bikini Color White
Regular Price
£8.00
Sale Price
£8.00
Regular Price
£13.00
Unit Price
per 
Save 38%
JOR JOR 1842 Nitro Jockstrap Color White
Regular Price
£8.00
Sale Price
£8.00
Regular Price
£13.00
Unit Price
per 
Save 13%
JOR JOR 1846 Ares Bikini Color White
Regular Price
£20.00
Sale Price
£20.00
Regular Price
£23.00
Unit Price
per