Day and Night blinds are popular with customers that ‘think’ they want a roller blind.
Essentially they are a roller blind, in that they roll up and down. The fabrics are woven in such a way as to create horizontal bands of solid fabric. They alternate with bands of sheer voile. The voile is much like a net curtain.
When operated to the open position, day and night blinds allows you to see through them because of the voile fabric, and when closed it gives total privacy.
If you want the window to be clear of any covering, simply roll the blind up into the headbox.