Pottery Barn describes this panel as follows Blackout liner: Crafted from 100% polyester, it prevents most light from entering windows to help darken the room. Made of 100% cotton velvet. Length includes height of pole pocket.
Restoration Hardware Cotton Velvet Drapery RP 50″ x96″ Carbon
1 Drapery Panel. Velvet fabric may crease when folded. To remove creases, hang drapery and steam the reverse side of the fabric. Drapery hooks not included. Use 7 drapery rings per single-width (50″W) Rod-Pocket panel.