Energy Saving, Blackout and with no visible holes for the lifting cords! Cellular Blackout fabrics (a.k.a Honeycomb or Duette Blackout) consist of double-layered cells of fabric that act as an insulating cushion between the inside of your home or conservatory and the outside world. Our cellular blackout range also incorporate a reflective foil layer inside of the cell, which further enhances insulation - reducing your energy spend on heating and cooling and potentially saving you money! All fabrics are a uniform white in colour on the exterior face, and coloured on the inside face. Lifting cords run through the middle of the honeycomb structure, meaning there are no visible holes or light ingress through the surface of the fabric. Whist the fabric itself is blackout, you may see light ingress around the edges of your blind.