May the luck of the Irish be with you! We've combined two favorite designs, shamrocks for for a reversible look - shamrocks on one side, plaid on the other. Made from 100% soft cotton, hand cut, top stitched for a finished look and long ties to adjust to your pet's comfort level. Pablo's neck is approx. 12.5" (31.75 cm) wearing the birthday prints in size x-Large.