I prefer Kensington to any other blanket or fly sheet there is. They are made of textaline, and covered with a natural fly repellent. They are a little pricy, but the most important thing is that they are flame ******ant. There is a story on Kensington's web page about a horse caught in a horrible fire. The face and head were burned severily, but where the sheet was covering was COMPLETELY burn free. It totally amazed me and after trying rambo, amigo, and bucas, I know that kensington is truly the best company. My horse has the kensington bug eye fly mask that is in perfect conditiion after 2 seasons and he lives in pasture 24/7. I just ordered the fly sheet and fly boots, and I can hardly wait for them to get in. I am glad because there are a lot of fires in my area, and I don't want him to be at risk.