These are true blackout! I was a little skeptical that the beige would be completely blacked out but the liner and fabric are thick/heavy and do the job. Took me a while to hang with curtain pin and rings (bought separately) to find the perfect spacing. I also took the time to pleat the curtains and tied loose strings for four days to let the curtains “memorize” that shape. They look fantastic and were a great buy for the price!!