Shopping bags are bags used to carry purchased items from a store to a consumer's destination. They come in various shapes, sizes, and materials, including paper, plastic, and reusable fabric. Shopping bags may be provided by retailers for free or sold to customers at a nominal price.

Plastic shopping bags have been a major environmental concern due to their negative impact on the environment. As a result, many cities and countries have implemented bans or taxes on single-use plastic bags, leading to the promotion of reusable shopping bags as an alternative. Reusable shopping bags, made from materials such as cotton, canvas, or non-woven polypropylene, are designed to be durable and long-lasting, reducing the need for single-use bags.