Knife pleats create a very full curtain – one of the fullest possible. This means there is a lot of material in the curtain, which can give a very strong softening effect. This pleat is popular among some of our customers who have selected this pleat for their sheer curtains. Sheers made up with knife pleat, being fuller, offer a little more privacy than other pleats. Also, a very full sheer can have a lovely softening effect on sunlight coming in through the window, making your room feel cosier and more comfortable.