By improving the knitting method, the 100% cotton* material is warm and soft against the skin. It fits gently to the body, so you can stay comfortable even in the cold winter.
Warm Cotton Innerwear
Warm Innerwear
Stay warm & cozy in the winter! MUJI's innerwear is made from organic cotton, processed to enhance its ability to absorb moisture while generating warmth. Find the best undershirts, leggings, thermal underwear, and long johns in our collection so you can be comfortable and protected from the cold all winter.
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$19.90$19.90 - $19.90Current price $19.90Men's Warm Cotton V-Neck Long Sleeve T-Shirt
An undershirt that is made with 100% organic cotton that absorbs moisture, keeping you warm in any weather. It is sewn without seams on the side so...
View full details$19.90$19.90 - $19.90Current price $19.90
$19.90$19.90 - $19.90Current price $19.90Warm Cotton U-Neck T-Shirt
This thermal undershirt is made of organic cotton that absorbs moisture, keeping you warm in any weather. It is sewn without seams on the side so i...
View full details$19.90$19.90 - $19.90Current price $19.90
$19.90$19.90 - $19.90Current price $19.90Warm Cotton V-Neck T-Shirt
A thermal undershirt that is made with 100% organic cotton that absorbs moisture, keeping you warm in any weather. It is sewn without seams on the ...
View full details$19.90$19.90 - $19.90Current price $19.90
$19.90$19.90 - $19.90Current price $19.90Warm Cotton Crew Neck T-Shirt
A thermal undershirt that is made with 100% organic cotton that absorbs moisture, keeping you warm in any weather. It is sewn without seams on the ...
View full details$19.90$19.90 - $19.90Current price $19.90
$19.90$19.90 - $19.90Current price $19.90Warm Cotton Crewneck T-Shirt
A thermal undershirt that is made with 100% organic cotton that absorbs moisture, keeping you warm in any weather. It is sewn without seams on the ...
View full details$19.90$19.90 - $19.90Current price $19.90
$19.90$19.90 - $19.90Current price $19.90Warm Cotton Long Tights
Stay warm and cozy with these long johns. Made with a smooth, soft blend of cotton and wool, these thermal long johns are both gentle on your skin ...
View full details$19.90$19.90 - $19.90Current price $19.90
$19.90$19.90 - $19.90Current price $19.90Warm Cotton Leggings
These thermal leggings are made with organic cotton that absorbs moisture, keeping you warm in any weather. It is sewn without seams on the side so...
View full details$19.90$19.90 - $19.90Current price $19.90
$19.90$19.90 - $19.90Current price $19.90Men's Warm Cotton Crew Neck Long Sleeve T-Shirt
An undershirt that is made with 100% organic cotton that absorbs moisture, keeping you warm in any weather. It is sewn without seams on the side so...
View full details$19.90$19.90 - $19.90Current price $19.90
