Recreational Equipment, Inc., doing business as REI, is an American retail and outdoor recreation services corporation. It was formerly governed, and continues to brand itself, as a consumers' co-operative. REI sells camping gear, hiking, climbing, cycling, water, running, fitness, snow, travel equipment, and men, women and kids clothing. It also offers services such as outdoor-oriented vacations and courses.

A consumers' co-operative is an enterprise owned by consumers and managed democratically and that aims at fulfilling the needs and aspirations of its members. Such co-operatives operate within the market system, independently of the state, as a form of mutual aid, oriented toward service rather than pecuniary profit. Many cooperatives, however, do have a degree of profit orientation. Just like other corporations, some cooperatives issue dividends to owners based on a share of total net profit or earnings ; or based on a percentage of the total amount of purchases made by the owner. Regardless of whether they issue a dividend or not, most consumers’ cooperatives will offer owners discounts and preferential access to goods and services.