2X Blockout Window Eyelet Sheer Curtains (132x213cm) BlackFor a cost effective way to retain heat in winter and keep cool in summer, invest in a set of Blockout Curtains. These double layer curtains include sheer panels for a decorative touch, allowing for multiple styling looks. Made from soft and breathable 250GSM triple weave fabric, these curtains are designed to block out the sunlight and provide thermal insulation through hot and cold weather. The high density curtain can also help to reduce echo