I sell the slippers on my website.
I make the following sizes for the pajamas:
XXS- Length 8 inch, waist 10 inch
XS- Length 11 inch, waist 13 inch
Small- Length 13 inch, waist 15 inch
And I can custom make them. For instance most yorkies are a little longer than my standard sizes so it is better to give me exact measurements. Here is a link to my page that shows how to measure your dog:
http://tinkerbellscloset.com/page_50.asp