These boot storage bags are exactly the right sizes for the two most popular styles of boots. They're lightweight, but sturdy, and the zipper opens and closes easily without sticking or jamming. They have a plastic window on the sides so you can easily see the contents, and a strap handle on top so you can easily carry them. The fabric is breathable, so your boots won't be in danger of getting musty or moldy, and it's a nonwoven fabric that's dustproof and easy to wipe down. it's not a stiff fabric, but still protective, and it won't take up a lot of extra room on your shelf.I like that there's a separate section for each boot so they aren't smashed together. I think they'll hold their shape better this way.