These are really good. They’re mesh, so they’re breathable, and the fabric is double-thickness, so they’re also durable. This is the set of seven multi-size bags, so some are the right size for just one tomato, but others would fit a head of lettuce or a bunch of potatoes, but this seller also makes sets that are all medium size. I found that lettuce wilts quicker in these bags than the plastic (I think they breathe too much for lettuce) so depending on the item, it might work best to switch to a different container for storing in the fridge.