I reckon host subway ready made double pinch pleat curtains in front of Multiple resource
EXCLUSIVE HOME Belgian Snowflake Solid Sheer Double Pinch Pleat / Hidden Tab Curtain, 30 in. W x 108 in. L (Set of 2) EH8254-01 2-108P - The Home Depot
Add Pleats to Our Drapes Triple or Double Pinch Pleated Curtains Fan Fold or French/euro Pleat Custom Drapes With Hooks - Etsy
Double and Triple Pinch - Curtain Fitters
Express Service Pinch Pleat Curtains - The Home of Interiors