blackout curtain liner

Most liners are made from 100% polyester; some listings use 100% recycled polyester. A few panels use a blended face fabric (example: 80% polyester/20% cotton) with a 100% acrylic suede backing that provides the blackout layer.

Listings typically offer widths around 40–50 inches and lengths ranging from about 80 up to 101 inches. Some vendors also offer extra-wide panels and multiple length options.

Many listings include accessories such as rings (commonly 16 per set) or drapery hooks (for example, 15 per panel). A few product pages explicitly note that drapery hooks are included with the panel.

Care instructions in these listings generally recommend machine washing; several also mention machine drying. Because specific washing temperatures and drying methods can vary, check the product label or listing details for the manufacturer’s recommended cycle, temperature, and any special instructions before cleaning.

Listings highlight full blackout (light blocking), improved energy efficiency, and some noise reduction. Descriptions commonly mention blocking sunlight, reducing heat loss or gain, and helping muffle outdoor noise.

Liners can hang via a rod pocket, be clipped to rings, or be hooked to main curtains using included drapery hooks or rings. Some rings are sized to fit thinner rods, and hook sets are often provided for attaching liners to panels.

Some listings note sustainability credentials: at least one liner is made from 100% recycled polyester, and another listing cites OEKO-TEX STANDARD 100 certification. Availability of certified or recycled options varies by product.