Dog Birthday Boy Tee features super soft, 2-way stretch material and is machine washable. Hand-pressed in Wichita, KS! 
We carry sizes XXS-5XL, 2-90 lbs. See the size chart in the photos. Sizes are suggested based on our historical customers. All pups are different. Please measure and compare to our size chart. Approximate weight to size chart below. 
Suggested Sizing: 
XXS - pets 2-4 lbs
XS- pets 3-6 lbs 
S- pet 6-10 lbs
M- pets pets-16 lbs 
L- pets 17-22 lbs
XL- pets 23-28 lbs
XXL- pets 28-40 lbs
3XL- pets 38-50 lbs
4XL- pets  50-70 lbs
5XL - pets 70-90 lbs
 
90% polyester 10% cotton, machine washable