Velvet Thermal Draperies are Ideal for Your Home Theater! Acrylic foam backing provides insulation from heat, cold and outside noise while thick, plush velvet is great for enhancing acoustics. Draperies are measured from top of the rod pocket down. Shirr on a 2-1/2" decorative rod or pole. Or hang with clip rings. Made of 100% cotton. Velvet thermals are dry clean only. Imported.