THERMAL INSULATING - Our full blackout curtains block out noise and heat well too. In the hot summer, they help block the heat keep the lot cool in the room perfectly and keep a balance temperature during the winter CARE INSTRUCTIONS - Machine washable under 86F water. Do not bleach or tumble dry, and should be ironed at low temperatures LINEN TEXTURED - Dairui Textile faux linen total blackout curtains are made from 100 percent premium quality durable polyester fabric. The material is stylish and soft to the touch. The more muted, linen look of these curtains always matches well with any decor in your home TOTAL BLACKOUT - They are not only room darkening curtains. These 100% blackout curtains with the integrated window curtain liner in the back helps to keep all of the light stays outside as does noise. Even during peak afternoon hours. The block out curtain drapes will protect your privacy during the day and ensure you an effective sleep at night