Double sheer blinds feature two layers of translucent(sheer) fabric held together with lightweight opaque fabric vanes. When double sheer blinds are open, light is diffused into the room - sometimes with a sparkle effect. The sheer softens incoming light and helps filter out harmful UV rays while providing an outside view. When double sheer blinds are closed, they offer complete privacy and block up to 99% of UV rays. Double sheer blinds also roll up fully into an attractive cassette valance to reveal an uninterrupted view to the outside.