Roll container of the nesting type and comprising: - chassis, - two side frame sections (120a, 120b) distanced from each other to create the width of the roll container, which side frame sections (120a, 120b) are hinged to the chassis for pivoting the side frame sections (120a, 120b) between: o an operational configuration, wherein the side frame sections (120a, 120b) are parallel to each other, and o a nesting configuration, wherein the side frame sections (120a, 120b) are tilted in respect to each other, - a castor assemblies (140, 150) attached to the chassis or side frame section (120a, 120b), - a base having peripheral edges, which base is pivotably attached from a first peripheral edge to the chassis or side frame section (120a, 120b), which base is configured to be manipulated between: o a load carrying orientation so as to functionally connect bottom ends of the opposing side frame sections (120a, 120b) for providing a floor in operational configuration of the roll container, and o an upright folded orientation for nesting configuration of the roll container, and - foot-operated locking means (111, 112, 113), which is: o provided to a second peripheral edge of the base and o configured to engage releasably with a castor assembly or to the bottom end of either or both of the side frame sections (120a, 120b) or to the chassis, characterized in that the locking means (111, 112, 113) comprises: - a pin, which is affixed to the base, - a crossbar, which is pivotably arranged to the second peripheral edge of the base and configured to rotate about the pin, and - a latch being distanced from the pin by the crossbar and extending there from and towards the pin such that the locking means is configured to be manipulated between: o a locking configuration, wherein the latch is engaged with the castor assembly, side frame section (120a, 120b) or chassis, and o a released configuration, wherein the latch is detached from the castor assembly, side frame section (120a, 120b) or chassis, whereby the latch may only be released from the castor assembly upon rotation of the crossbar about the pin. - chassis, - two side frame sections (120a, 120b) distanced from each other to create the width of the roll container, which side frame sections (120a, 120b) are hinged to the chassis for pivoting the side frame sections (120a, 120b) between: o an operational configuration, wherein the side frame sections (120a, 120b) are parallel to each other, and o a nesting configuration, wherein the side frame sections (120a, 120b) are tilted in respect to each other, o an operational configuration, wherein the side frame sections (120a, 120b) are parallel to each other, and o a nesting configuration, wherein the side frame sections (120a, 120b) are tilted in respect to each other, - a castor assemblies (140, 150) attached to the chassis or side frame section (120a, 120b), - a base having peripheral edges, which base is pivotably attached from a first peripheral edge to the chassis or side frame section (120a, 120b), which base is configured to be manipulated between: o a load carrying orientation so as to functionally connect bottom ends of the opposing side frame sections (120a, 120b) for providing a floor in operational configuration of the roll container, and o an upright folded orientation for nesting configuration of the roll container, and o a load carrying orientation so as to functionally connect bottom ends of the opposing side frame sections (120a, 120b) for providing a floor in operational configuration of the roll container, and o an upright folded orientation for nesting configuration of the roll container, and - foot-operated locking means (111, 112, 113), which is: o provided to a second peripheral edge of the base and o configured to engage releasably with a castor assembly or to the bottom end of either or both of the side frame sections (120a, 120b) or to the chassis, o provided to a second peripheral edge of the base and o configured to engage releasably with a castor assembly or to the bottom end of either or both of the side frame sections (120a, 120b) or to the chassis, - a pin, which is affixed to the base, - a crossbar, which is pivotably arranged to the second peripheral edge of the base and configured to rotate about the pin, and - a latch being distanced from the pin by the crossbar and extending there from and towards the pin such that the locking means is configured to be manipulated between: o a locking configuration, wherein the latch is engaged with the castor assembly, side frame section (120a, 120b) or chassis, and o a released configuration, wherein the latch is detached from the castor assembly, side frame section (120a, 120b) or chassis, whereby the latch may only be released from the castor assembly upon rotation of the crossbar about the pin. o a locking configuration, wherein the latch is engaged with the castor assembly, side frame section (120a, 120b) or chassis, and o a released configuration, wherein the latch is detached from the castor assembly, side frame section (120a, 120b) or chassis, whereby the latch may only be released from the castor assembly upon rotation of the crossbar about the pin.