Chair assembly with upholstery covering

A seating unit component assembly, comprising:

• a support component adapted to support a portion of a seated user, the support component including a first surface adapted to abut a seated user, a second surface opposite the first surface, a first end surface, a second end surface opposite the first end surface, and a pair of side surfaces extending between the first and second end surfaces;
• and
• a cover having a plurality of sides that cooperate to form an interior space that receives the support component therein, the cover comprising:
• a first portion comprising a substantially flexible, elastically resilient material covering at least a portion of at least one of the side surfaces of the support component;
• a second portion comprising a significantly flexible material having a flexibility that is greater than the flexibility of the first portion and covering at least a portion of the first surface and at least a portion of the first end surface of the support component;
• and
• a third portion comprising a substantially rigid overlay, wherein the third portion is less flexible than the first portion, and wherein the third portion covers at least a portion of the second surface and at least a portion of the side surfaces of the support component.