A sheet material container (C) includes a containing portion (10a) that contains contents (96) and is formed of a layer sheet (120). The layer sheet (120) includes an inner sheet (123), an intermediate sheet (122) covering an outer side of the inner sheet (123), and an outer sheet (121) covering an outer side of the intermediate sheet (122), and is arranged on opposite sides with the containing portion (10a) between the opposite sides. At least parts of the outer sheet (121) and the intermediate sheet (122) include light transmitting portions (34a, 34b, 34c) that can transmit visible light. The inner sheet (123) or the contents (96) can be visually recognized through the light transmitting portions (34a, 34b, 34c) from outside the sheet material container (C).