Lullabi Premium Collection, Thermal Tweed, Grasscloth Texture, Room Darkening Window Curtain Drapery, Back Tab, 84-inch Length by 50-inch Width (Burgundy,2 Panels) Thermal Tweed is a subtle tweed texture in woven room darkening fabric. Textured panels feature a thermal fabric backing that will help darken your room. Room Darkening; Blocking UV ray; reduces intrusive noise; Helping reduce home heating and cooling costs. 100% Polyester heavy-weight fabric, soft and drapery Two panels: 50" W x 84" L; 8 back tab per panel. GUARANTEED - 100% satisfaction or 100% money back in 60 days. No question asked.