Convertible high chair system

A convertible high chair comprising:

• a frame configured for resting on a support surface, the frame including a plurality of upwardly extending frame members;
• a first child seat supported in an elevated position above the support surface by the upwardly extending frame members, the first child seat comprising a first seating surface;
• and
• a second child seat comprising a second seating surface and a base surface, the second child configured to have a high chair configuration when the second child seat is coupled to the first child seat and a booster seat configuration when the second child seat is decoupled from the high chair;
• wherein the base surface of the second child seat is dimensioned to nest within the first child seat in the high chair configuration, and
• wherein the base surface of the second child seat is also configured to provide stability to the second child seat when resting on a separate elevated support surface without the need for a separate base or support member when in the booster seat configuration.

A child seat configured to be removably coupled to a high chair seat assembly, comprising:

• a base portion;
• a seating surface configured to support a child thereon;
• and
• first and second shoulders extending upwardly from first and second sides of the base portion;
• wherein the child seat is configured to fit securely on top of the high chair seat assembly in a first mode of operation;
• wherein said base portion is configured to rest on a substantially flat support surface without the need of an additional separate support member between the substantially flat support surface and said base portion in a second mode of operation;
• wherein the base portion comprises first and second locking features corresponding with the first and second sides of the base portion;
• and
• wherein the first and second locking features of the base portion correspond with first and second locking features of the high chair seat assembly in the first mode of operation.