This is a BODY HEATER sold at Ito-Yokado. It's off-white, size LL, made of 95% cotton and 5% polyurethane. I bought it last year and only tried it on, so I think it's clean, but it's a used item, so please refrain from purchasing if you are concerned. There are many fold wrinkles. Product name: Long-sleeved gathered neck #Warm #Gentle touch #Comfortable stretch Retail price ¥1,859