Insulated grocery bags can be used for purchasing cold or frozen food. The best reusable shopping tote is made of cloth zipped up easily. The canvas car/cart bags can be recycled and used for women or men. And you can also use it for a picnic, put all freezer items in the cooler bag.The other nice thing about them is that they collapse into a flat shape when not in use making them very easy to store. They are light weigh and portable after folding to carry.