This pillow protector has protected my pillows over the last 7 months very nicely. So i bought 2 more when I purchased new pillows. Earlier all the pillows at home would get stained very badly & even after washing the pillows the stains would not go. But now these covers keep my pillows as good as new. I am yet to see how well it sustains after several washes. I have washed them only once in the last 7 months as I use them under my pillow covers.