Abstract: A storage container includes a base with a storage compartment and a lid positionable to fit over an upwardly extending perimeter wall of the storage compartment. A spine is hinged between the base and the lid to allow articulated movement of the lid with respect to the base. The spine includes at least one stiffener ridge integrally formed in the spine and extending longitudinally along the spine. The stiffener ridge reduces bowing of the spine between a lid hinge and a base hinge. A removable tray is insertable into the storage compartment to divide the compartment into a plurality of smaller compartments. Partitions may be placed in the storage compartment to divide the storage compartment into smaller compartments. The partitions may extend into receiving grooves in the lid to block movement of sortables from one compartment to another.