I can't believe how much easier these make keeping my suitcase organized. I bought these for the first trip I took with our new baby, to keep his clothes and my clothes organized in one suitcase. They fit perfectly in my standard carry on roller-board, and kept their basic shape but didn't add any bulk or weight. So much easier to pack and repack without tearing part the whole bag looking for one thing. I can't really speak to durability as I have only used them twice so far, but they seem good quality. I didn't notice any issues with the zippers getting caught or separating as you might worry about in a low-cost product.