These bandannas are made to be tied around the neck. Measurements are next the size choices.
Please measure your pups neck and be sure to leave room so it is not to tight. Add 1-2 inches to your measurement for the knot. They are made with cotton fabric and edges are sewn. You can wash them and we recommend hang drying to avoid shrinking. You can also roll them to shorten them before you tie and it is always better to go with the slightly bigger one if the measurements are close for neck size.