Pouch (1) for transporting and/or processing a biopharmaceutical fluid (2), the pouch (1) comprising a flexible wall (3), the flexible wall (3) comprising a shape memory material (20) being adapted to change shape when induced by an external stimulus, so that the pouch (1) can be alternately in a collapsed state and in an unfolded state, the wall (3) of the pouch (1) in the unfolded state delimiting a closed internal cavity (4) adapted to contain the biopharmaceutical fluid (2).