Outdoor stack chair

[0001]FIG. 1 is a top perspective view of an outdoor stack chair;

[0002]FIG. 2 is a bottom perspective view thereof;

[0003]FIG. 3 is a front elevational view thereof;

[0004]FIG. 4 is a rear elevational view thereof;

[0005]FIG. 5 is a right-side elevational view thereof;

[0006]FIG. 6 is a left-side elevational view thereof;

[0007]FIG. 7 is a top plan view thereof; and,

[0008]FIG. 8 is a bottom plan view thereof.

[0009]The dash-dash broken lines shown in the drawings illustrate portions of the article that form no part of the daimed design. Additionally, the dot-dotbroken lines shown in FIGS. 2 and 8 illustrate portions of the article that form no part of the claimed design.