These are one of the most underrated products, you think oh it's "just a bag" and then you use them and you find yourself refusing to use any other type of shopping bag ever again. They hold a deceivingly large amount of stuff but they still fold up small so you can keep them in the centre console of the car, nappy bag, handbag, almost anywhere as they take up such little space. Not only are they super convenient to store, they are made with real quailty - the strength of the material means they can hold a large amount of weight and the elastic band (that's sewn on so can't be lost) doesn't lose its shape which means once you've folded up the bag for storage it stays folded.