Striped Hoodie or Tshirt for dog, many options of colors available, cotton jersey (Black and Grey and Blue steel and White), cotton-lycra (Red and White - The one Martini is wearing) very light jersey (black and white) .. other colors are Ponte de Roma fabric (not that Ponte de Roma is not as stretchy as Jersey fabrics and is a bit thicker).
 
See size chart for more info. For special measurements (cats, dogs with a long back ex. dashund, etc.) you can ask for the tailored option (send measurements A-B-C-D-E in a private message)  and I'll make a sewing pattern for your dog. The tailored option is for dogs with chest less than 26 inches. 
 
For larger dogs, pleae ask an estimate of the costs and send measurements A-B-C-D-E (see picture). Many thanks!!
 
Thank you @lovemartini for the amazing cover picture, love you so much, forever !! xxx