Seat rest for chair with 3d print lattice structure zonal compliance

A seat rest comprising:

• a seat rest shell;
• and
• a seat rest base mounted to the seat rest shell, wherein the seat rest base is in the form of a lattice structure that includes:
• a first zone composed of a first plurality of interconnected ribs that result in a first peak sit pressure value for the first zone;
• and
• a second zone composed of a second plurality of interconnected ribs that result in a second peak sit pressure value for the second zone that differs from the first peak sit pressure value.

A multi-zonal sitting apparatus comprising:

• a seat rest base;
• a seat rest lattice structure positioned on a top surface of the seat rest base, wherein the seat rest lattice structure is a 3D printed lattice with a first zone having a first sitting pressure and a second zone having a second sitting pressure;
• and
• one or more leg supports connected to a bottom surface of the seat rest base to support the seat rest base.