I’ve had my homemade sourdough in this bag for 5 or 6 days now and while it’s on the stale side of course, it is still soft enough to enjoy. I had been using the brown parchment type bread bags and the bread would just be good for toast by the 5 day mark. With this bag I was still able to enjoy a sandwich today (I baked the bread on Sunday or Monday and it’s now Saturday). It is plenty big for whatever size loaf I make, with a large zipper top for easy in and out of bread. The zipper is good quality and zips open/closed very easily. I didn’t think it would make that much of a difference from the parchment bags but it is so quick and convenient to pull out the loaf, toss it back in, zip closed and roll down to remove air and make smaller. It has flexible wires of some sort (I’m assuming) in the sides to keep it rolled up. I have not had to wash it yet but it says machine washable, although it seems easy enough to wash by hand. Overall I am very happy to have gotten this and think it is well worth the current price of around $20. I would purchase another if needed, and might do so for gifts to fellow bakers. It seems of good enough quality to last for quite some time but I will update if that is not the case.Just a note, I saw another reviewer that mentioned it being airtight and that bread needs to breathe or it will mold quickly. I don’t believe it is airtight, as after you zip it you push the air out while rolling the top down so I’m assuming it breathes through the zipper. Could always leave the zipper open a little if really worried. I’m not sure if sourdough is more resistant to mold than regular yeast bread, but mine was still mold free after being stored in it all week.