Pixie... and I... love the Brianna Dog Panty! They are really cute and coordinate with her sweaters. Pixie is 3.5 lbs and the XS fits her very well. It helps that they have velcro at the waist, which makes them easy to get on and off, as well as easy to adjust the fit. I am planning on buying another pair!
[5 of 5 Stars!] 
