When they first came out with the flame retardant flannels I bought a bunch for my kids. When I got it home it smelled so bad of chemicals I put it away and even later it smelled so bad. So I put it away never to ever use it. Then threw it away, not too long ago I heard that it was proven that the chemicals in that flannel caused cancer. That was on a news report, so I was very glad I had never used it. Don't know if it was true or not, knowing how the news is sometimes, but I was still glad I threw it out.