A folding container comprising a quadrilateral base and a plurality of cover elements (110, 120, 130, 140), each of which cover elements (110, 120, 130, 140) comprising: - a respective first panel (111, 121, 131, 141) pivotably connected from a bottom end to a respective edge of the base so as to be turned between an erected state, in which the plurality of first panels (111, 121, 131, 141) extends orthogonally in respect to the base, and a collapsed state, in which the plurality of first panels (111, 121, 131, 141) extends parallel in respect to the base, wherein each first panel (111, 121, 131, 141) is configured to be turned in towards the base during conversion from erected to collapsed state, - a respective second panel (112, 122, 132, 142) pivotably connected to the top end of the respective first panel (111, 121, 131, 141) so as to be turned between an erected state and a collapsed state, in both of which states the second panel (112, 122, 132, 142) extends in parallel in respect to the respective first panel (111, 121, 131, 141) wherein each second panel (112,122,132,142) is configured to be turned out towards the outer side of the respective first panel (111, 121, 131, 141) during conversion from erected to collapsed state, wherein: - one of the cover elements is a first side wall which is pivotably connected to a second edge of the base, - one of the cover elements is a second side wall which is pivotably connected to a third edge of the base, - the first panels (121, 131) of the first side wall and second side wall are hinged to the base so as to maintain upright position until manipulated into rotation towards the collapsed state, - the first panel (121, 131) and the second panel (122, 132) of each of the first and second side walls (120, 130) are mutually articulated through at least one hinge, which connects the panels (121, 131; 122, 132) and comprises: ∘ a first counterpart connected to the first panel (121, 131) and ∘ a second counterpart connected to the second panel (122, 132), which second counterpart is articulated in respect to the first counterpart through an axle, characterized in that the axle of the hinge connecting the first and second panel (121, 131; 122, 132) of each of the first and second side walls (120, 130) is a horizontally extending axle, wherein the hinge is configured to provide rotation about the axle and translation along the axle, and in that said hinge comprises a biasing element, which is configured to urge the first and second counterparts (124, 127) into a predetermined mutual axial position along the axle for aligning the first and second panel (121, 131; 122, 132) in the horizontal dimension. - a respective first panel (111, 121, 131, 141) pivotably connected from a bottom end to a respective edge of the base so as to be turned between an erected state, in which the plurality of first panels (111, 121, 131, 141) extends orthogonally in respect to the base, and a collapsed state, in which the plurality of first panels (111, 121, 131, 141) extends parallel in respect to the base, wherein each first panel (111, 121, 131, 141) is configured to be turned in towards the base during conversion from erected to collapsed state, - a respective second panel (112, 122, 132, 142) pivotably connected to the top end of the respective first panel (111, 121, 131, 141) so as to be turned between an erected state and a collapsed state, in both of which states the second panel (112, 122, 132, 142) extends in parallel in respect to the respective first panel (111, 121, 131, 141) wherein each second panel (112,122,132,142) is configured to be turned out towards the outer side of the respective first panel (111, 121, 131, 141) during conversion from erected to collapsed state, - one of the cover elements is a first side wall which is pivotably connected to a second edge of the base, - one of the cover elements is a second side wall which is pivotably connected to a third edge of the base, - the first panels (121, 131) of the first side wall and second side wall are hinged to the base so as to maintain upright position until manipulated into rotation towards the collapsed state, - the first panel (121, 131) and the second panel (122, 132) of each of the first and second side walls (120, 130) are mutually articulated through at least one hinge, which connects the panels (121, 131; 122, 132) and comprises: ∘ a first counterpart connected to the first panel (121, 131) and ∘ a second counterpart connected to the second panel (122, 132), which second counterpart is articulated in respect to the first counterpart through an axle, characterized in that the axle of the hinge connecting the first and second panel (121, 131; 122, 132) of each of the first and second side walls (120, 130) is a horizontally extending axle, wherein the hinge is configured to provide rotation about the axle and translation along the axle, and in that said hinge comprises a biasing element, which is configured to urge the first and second counterparts (124, 127) into a predetermined mutual axial position along the axle for aligning the first and second panel (121, 131; 122, 132) in the horizontal dimension. ∘ a first counterpart connected to the first panel (121, 131) and ∘ a second counterpart connected to the second panel (122, 132), which second counterpart is articulated in respect to the first counterpart through an axle,