From the manufacturer: “The panels have an attractive finish, substantial weight, and a soft feel. They are made of cotton with a rich, woven texture just like duck cloth and backed with an acrylic suede liner. This panel features 12 antiqued-brass grommets. It creates a barrier against sunlight and drafts, helping maintain a constant room temperature year-round. They are also great for protecting carpets, eliminating unwanted noise and reflections. They block out up to 95.3% of light, reduce outdoor sound by up to 46.3% and reduce heat loss by as much as 44%. • What's Included? • Liner(s) • Product Details • Material: Cotton blend • Light Filtration: Room Darkening • Liner or Backing Included: Yes • Pieces Included: 2 Panels • Cleaning Method: Machine washable • Header Included • Header Type: Grommet • 5-8 Our Thermalogic™ Insulated Curtains have an attractive finish, substantial weight and a soft feel. They're made of cotton with a rich, woven texture and backed with an acrylic suede liner. • Insulated Window Curtains create a barrier against sunlight and drafts, helping 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, reduce outdoor sound by up to 46.3% and reduce heat loss as much as 44%. A great investment for any room of your home! Individual panels (6 grommets) are 40"W each,