I purchased this set of two sandwich bags so that my daughter's sandwiches would remain cool when she takes them to school for lunch. According to the description, the bags can keep foods hot and cold. I can't speak as to either b/c when I pack my daughter's sandwich, I always add a think ice-pack, and so far, we have not used it for anything hot. So, for us, it works well, and it's of excellent quality. I also wrap my daughter's sandwich in foil before placing it in the bag, so I don't have any issues with needing to wash it every day. ??Great insulated sandwich bags. Came with 5 bags.Though intended for sandwiches (would be ideal I’m sure) my high schooler wanted these to bring smaller items to school in her back pack to stay cold (cheese sticks, yogurt tubes, fruit, etc) and these worked perfectly! I highly recommend this product!! Very versatile & easy to clean/dry!I removed the pizza from oven, wrapped paper towel around it and put it in the bag within 3-5 minutes.Very unhappy with the results. The pizza stayed hot inside for maybe 45 minutes.Cleaning the bag was great. It was very sturdy once the item was inside.Does NOT provide any insulation or keep anything chilled at all. Save money and buy a baggie for same results ????Bought these to keep my daughter’s sandwiches warm for lunch. It melted from the sandwiches heat after I warmed up the sandwich and placed it inside the bag-she said it wasn’t very warm when she went to eat it a few hours later. I guess I will stick with aluminum foilHard to clean and not quite as durable/reusable as expected. Put it this way: my teenaged son threw one away after lunch, and I couldn't entirely blame him for thinking it disposable . . ..They aren't bad and the price is right, but I wouldn't buy them again. Prefer the wrap-up kind.You don’t actually get what is pictured. I kept what was sent because I needed it for kids school lunch. It lasted a whole week.