Holy Cow!!  I bought these expecting to be able to put one or two comforters in each. I have managed three queen sized Sherpa blankets in one, two queen size comforters and a queen king size quilt in one, all of my winter clothes into one and am planning on putting all of my little throws and smaller blankets in the other for the kiddos. So much space!!!!  Could not be happier!  
Beware though- They are flimsy and do not stand up straight until you fill them so stacking them means you have to fill them full but they zipped closed and didn’t tear so I am very satisfied.