Shopping sacks are bags used for carrying purchased items from stores. They come in various materials, including paper, plastic, and fabric, and are designed to be durable and reusable. Many stores offer shopping sacks to customers, often featuring their logo or branding. These sacks are an eco-friendly alternative to single-use plastic bags, as they can be used multiple times and reduce waste. Some shopping sacks are specifically designed to fold up for easy storage, making them convenient for consumers to carry in their backpacks or purses for unexpected shopping trips.