The ornamental design for an adjustable tiehat, as shown and described.
FIG. 1 is a perspective view of an adjustable tie hat, showing my new design;
FIG. 2 is a left elevation view of the adjustable tie hat illustrated in FIG. 1;
FIG. 3 is a right elevation view of the adjustable tie hat illustrated in FIG. 1;
FIG. 4 is a front elevation view of the adjustable tie hat illustrated in FIG. 1;
FIG. 5 is a rear elevation view of the adjustable tie hat illustrated in FIG. 1;
FIG. 6 is a top plan view of the adjustable tie hat illustrated in FIG. 1; and,
FIG. 7 is a bottom plan view of the adjustable tie hat illustrated in FIG. 1.
The broken line outlining the bill of the hat illustrates environmental subject matter and forms no part of the claimed design. Additionally, the broken lines shown spanning the crown of the cap illustrate environmental subject matter and form no part of the claimed design.