The ornamental design for a pull-lacing back brace, as shown and described.
FIG. 1 is a rear perspective view of a pull-lacing back brace in the open position according to the claimed design;
FIG. 2 is a front perspective view thereof in the open position;
FIG. 3 is a rear-elevational view thereof when it is secured on a body;
FIG. 4 is a front-elevational view thereof when it is secured;
FIG. 5 is a left-side elevational view thereof when it is secured;
FIG. 6 is a right-side elevational view thereof when it is secured;
FIG. 7 is an enlarged partial view of FIG. 1; and,
FIG. 8 is an enlarged partial view of FIG. 2.
The broken lines in the drawings depict environment and form no part of the claim. The broken lines depicting the cut lines of the enlarged partial views in FIGS. 7, 8 form no part of the claim.