The ornamental design for a conformable and flexiblecontainerliner, as shown and described.
FIG. 1 is a front perspective view of a conformable and flexible container liner showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a right side view thereof; and,
FIG. 7 is a left side view thereof.
The lightweight broken lines are shown for the purpose of describing parts of the article that form no part of the claim. The heavier broken line details connected by a thin line are shown for the purpose of describing stitching that forms part of the claim.