Thermalogic Solid Room Darkening Thermal Grommet Curtain Panels have an attractive finish, substantial weight and a soft feel. They’re made of cotton with a rich, woven texture similar to sailcloth and backed with an acrylic suede liner. Six antique-brass grommets per panel. Insulated Thermalogic™ Curtains create a barrier against sunlight and drafts, helping you maintain a constant room temperature year-round. They are also great for protecting carpets, eliminating unwanted noise and reflections. Thermalogic™ Curtains block out up to 95.3% of light, reduces outdoor sound by up to 46.3% and reduce heat loss as much as 44%. A great investment for any room of your home! Imported. Keeps warm air in during winter, cool air in during summer.