These bags are significantly smaller than the 13 gallons that they advertise; when we held the bag up to a Kirkland bag of the same supposed volume, there were inches difference in both height and width, with the Kirkland bag being our usual and preferred bag. There is zero room for expansion, so they fill way too quickly. Finally, once filled, they are very difficult to get out of a standard plastic garbage canister. Because of the difficulty, we end up overextending the drawstrings, so we have to double-bag every time just to get the bag of garbage out to the dumpster. Without a doubt, these are the worst bags we have ever used. We bought a box of 90, and in 2 weeks we have used almost half of them. If we could give zero stars, we would.