Since it's been taken out of the bag, it's practically unused. Described as gray, but it looks almost black. 【Soft and Stretchy Innerwear】 The main fabric uses ceramic-infused yarn that emits far-infrared rays, providing warmth. It's made of soft, stretchy material for a stress-free feel. There are no seams on the sides of the body, making it comfortable against the skin. It has antistatic properties to reduce discomfort caused by static electricity.