A pannier, which comes from the French word for the bread basket, is a bag often referenced as a motorcycle bag or bike bag often lined with a hard bottom, that is hung on the side of a bicycle or motorcycle across the pannier rack or the hard metal frame attached to the vehicle itself. Panniers are used for carrying things by cyclists and are often used in touring and commuting. Panniers' mainstream use is to carry groceries or other items that are too large to fit in a typical bicycle basket or within the motorcycle storage unit under the seat.