Knife Pleat
Knife pleat curtains are a traditional header, often used to create volume in a curtain while keeping it fairly flat. For this reason, it works really well on a rear track.
A knife pleat lining or sheer is a truly functional choice. In the case of the sheer, the smaller pleats create a beautiful frill effect. For the Lining we would typically increase the width of the pleats, becoming flatter and less fussy, allowing the front curtain to be the feature.
Knife Pleat Rear lining
Knife pleat sheer on rear track

