Ergonomic Office Chair

FIG. 1 is a front view of an ergonomic office chair embodying the new design; FIG. 2 is a rear view thereof; FIG. 3 is a right side view thereof; FIG. 4 is a left side view thereof; FIG. 5 is a top view thereof; FIG. 6 is a bottom view thereof; FIG. 7 is a front perspective view thereof; and, FIG. 8 is a rear perspective view thereof. The broken lines of FIGS. 1 - 8 illustrate portions of the ergonomic office chair that form no part of the claimed design.