The invention specifies a double-walled liquid container having an inner side wall (4), an outer side wall (3), which is arranged outside the inner side wall (4), a retaining structure (1) and a fixing element (6), which is fitted on the retaining structure (1). The inner side wall (4) has an upper edge (41) and delimits an interior (9), which serves for accommodating a liquid. The outer side wall (3) has an upper edge (31) and a lower edge (32). The retaining structure (1) has an inner retaining element (162), in which the upper edge (41) of the inner side wall (4) is retained, and an outer retaining element (161), in which the upper edge (31) of the outer side wall (3) is retained. The fixing element (6) here fixes the lower edge (32) of the outer side wall (3) in relation to the retaining structure (1).