Excellent Art Ultra Featherproof Zippered All Cotton Pillow Protector 400 Thread Count - Set of Two

Has reduced the amount of feathers but not eliminated them from appearing outside of the pillow. One of the two cases arrived with two tears in it along the seams, wasn't worth the hassle of exchanging, sewed the two tears. Better than nothing but if another brand has better reviews definitely go for the other one.

These are very nice quality cases for down pillows. They are perfect for protecting a high value pillow.

Ordered these twice! I also use them underneath the regular pillowcase. Crispy white!

Too early to tell if it will be feather proof.

These were purchased for feather pillows that were giving my dog allergic reactions. They worked.

I bought these to cut down and make liners for feather throw pillows. That project turned out well, but the material itself is not actually featherproof. I still get quills emerging from the pillows. Not as many as before, but still often enough to be an issue. So while these are reasonably well made, they are not featherproof.

2 stars for keeping feathers inside...The zipper is another story all together, it pokes, is sharp and exposed. I can't put the zipper on the closed end of the pillowcase because I scrunch that end up when I sleep and end up with zipper-face. Ordering a different brand with hidden zipper.

This product really reduced the amount of feathers falling out of the pillows on our couch; but we still do get a few stray feathers. Might have something to do with having three teenagers. If you are more careful than teens would be, this product would work fine for you.