One of the coolest of all Rock n’ Roll axes was the combined 12 string & 6 string guitar. Played by some of the most talented and legendary guitarists in Rock history, we wanted to honor this unique instrument by including it in our collection and laying it over a vintage antique filigree pattern. This dog t-shirt is made of 100% certified organic baby rib cotton for comfort and a stretchable fit. Color: Heather Gray. Please note that a negligible shrinkage may occur during washing. To measure the length of your dog, measure from collar to base of tail. If your dog is more stout or barrel chested, consider going up one size. Our shirts are made of the finest 100% Organic Cotton Baby Rib. To Launder, Wash Cold Inside Out, Line Dry or Tumble Dry Low, Do Not Bleach.