MUJI Women's Warm Cotton Thick Crew Neck Long Sleeve T-Shirt Black Size M Only worn once. I am selling it because it didn't suit my skin. ↓ Quoted from the website below This innerwear is made of 100% cotton with a brushed back, using fabric with moisture-absorbing and heat-generating properties. The cotton is organic cotton. ■ Enhanced natural moisture-absorbing and heat-generating function of cotton Cotton is a natural functional material that absorbs moisture and generates heat. While maintaining the texture of cotton, we have added cotton that has been specially processed to further enhance its original function, creating innerwear with moisture-absorbing and heat-generating properties. The warmth lasts even after repeated washing. ■ Reduces skin dryness Compared to synthetic fibers, cotton does not excessively absorb the skin's oils, making it a gentle material for dry winter skin. ■ Combination of natural materials that suppress static electricity Cotton is less prone to static electricity, and is a material that is less likely to cause static electricity even when layered with wool knitwear. 【Material】 The inside is lightly brushed for a soft and fluffy feel against the skin. 【Design】 The neck is tighter than a U-neck design. The long sleeves keep your wrists warm. 【Specifications】 Transparency: None Stretch: Yes Fit: Regular