The core gaps in the fiber structure of thermal yarn ensure that the garment is both warmer and lighter. JIBER thermal fabrics keep extra warm with their heated feature; It prevents heat loss in the body and keeps it warm. It expels moisture with its natural structure. It is soft, does not itch or irritate. It is flexible and hugs your body. It doesn't stain your clothes. It is lightweight and can be used all day long. It is easy to wash and dries quickly. Washing Instructions: Wash at maximum 40 °C. Do not dry in the dryer. Do not use bleach.