We recently bought 5 sets of the Annie Grey Buffalo tiers and swags to match for our kitchen and adjacent laundry room. They are lined 100% cotton. You can't see through them but they still let in plenty of light. Finding cotton curtains in a print or pattern we liked seemed impossible until we found these at Lange's. We have ordered other products at Lange since and have been happy with each purchase. Quality products at a good price with quick delivery.