A reusable shopping bag, sometimes called bag for life is a type of shopping bag which can be reused several times: this is an alternative of single use paper or plastic bags. It is often made from fabric such as canvas, woven synthetic fibers, or a thick plastic that is more durable than disposable plastic bags, allowing multiple use.

Reusable shopping bag is a kind of carrier bags, which is available for sale in supermarkets and apparel shops. Reusable shopping bag requires less waste of natural resources such as oil and less emission of carbon dioxide to produce than plastic bags.