These are great for my patio. I wanted pillows that I could use to have different holiday covers on for all the seasons and these are a great size & quality. Will be buying more for my back patioWas hoping for a more thick & "plush" outdoor pillow but it's very thin. It didn't expand much as I hoped after opening. I'm keeping it for now but will get a better one.Did not fill out the pillow covers for that size of pillow. It came packaged very smooshed down and even after fluffing and being out for a week, still very deflated. For the price, they work for my front porch though.Bought this to fill the Nic Cage mermaid pillow. (Also worth the money). But that case is 16x16 and I wanted it to go full Cage. So the 18x18 insert was perfect.Wrapped up so tight, folded 4 times and then the life sucked out of it, bagged and had so much tape sealing the package, I’m surprised I didn’t damage it when opening-ridiculous! Beware if you order this one as you need to take extra care in opening! Didn’t “fluff” up, put in dryer on air mode for a few minutes and still flat, cheap pillow insert. Yuck! Can’t send back now, I destroyed all the packaging trying to open it! There are others vacuum sealed that are much easier to open!This pillow has a case on it and it is proudly being displayed in my bedroom.I got this to put in a new pillow cover of my puppy. It fits perfectly. I keep it inside so not sure about it being waterproof. However, having dogs, I may find out one day.I think that the stuffing is a bit less than I expected, but it's adequate for outdoor pillowsFlimsy and not worth the moneyBought them for some outdoor pillow covers I purchased, they fit beautifully, my pillows look great!!!