A restraint assembly of a cargo system, the restraint assembly comprising: a base configured to be mounted to a tray of the cargo system; a lateral restraint comprising a guide face and a top edge, wherein the lateral restraint is rotatably coupled to the base; and a vertical restraint extending from the top edge of the lateral restraint; wherein: the restraint assembly is configured to have a stored position and a raised position; in the stored position both the lateral restraint and the vertical restraint are configured to be disposed within a volume defined by the tray of the cargo system; in the raised position the vertical restraint and at least the guide face of the lateral restraint are configured to be disposed above the volume defined by the tray of the cargo system such that the restraint assembly provides at least one of longitudinal guidance, lateral restraining, and vertical restraining to cargo; and a first rotational axis between the lateral restraint and the base is configured to extend perpendicular to a longitudinal axis of the tray of the cargo system; and characterized by the first rotational axis between the lateral restraint and the base being configured to be oblique relative to a conveyance plane of the cargo system. a base configured to be mounted to a tray of the cargo system; a lateral restraint comprising a guide face and a top edge, wherein the lateral restraint is rotatably coupled to the base; and a vertical restraint extending from the top edge of the lateral restraint; wherein: the restraint assembly is configured to have a stored position and a raised position; in the stored position both the lateral restraint and the vertical restraint are configured to be disposed within a volume defined by the tray of the cargo system; in the raised position the vertical restraint and at least the guide face of the lateral restraint are configured to be disposed above the volume defined by the tray of the cargo system such that the restraint assembly provides at least one of longitudinal guidance, lateral restraining, and vertical restraining to cargo; and a first rotational axis between the lateral restraint and the base is configured to extend perpendicular to a longitudinal axis of the tray of the cargo system; and characterized by the first rotational axis between the lateral restraint and the base being configured to be oblique relative to a conveyance plane of the cargo system. the restraint assembly is configured to have a stored position and a raised position; in the stored position both the lateral restraint and the vertical restraint are configured to be disposed within a volume defined by the tray of the cargo system; in the raised position the vertical restraint and at least the guide face of the lateral restraint are configured to be disposed above the volume defined by the tray of the cargo system such that the restraint assembly provides at least one of longitudinal guidance, lateral restraining, and vertical restraining to cargo; and a first rotational axis between the lateral restraint and the base is configured to extend perpendicular to a longitudinal axis of the tray of the cargo system; and characterized by the first rotational axis between the lateral restraint and the base being configured to be oblique relative to a conveyance plane of the cargo system.