We recommend down inserts 1-2 sizes larger than the pillow cover for all of our pillows, especially if you are looking for a luxurious and full look. For example, a 20×20 pillow cover will look best with a 22×22 insert. Currently, we are only selling 20×20 square pillow covers, which is our most popular size.
Alternatively, inexpensive polyester fills can be used as well. Please be careful when inserting overstuffed down fills as to not cause stress on the zipper and possibly pop the pillow seam.