Kaira weighs 6 lbs. I believe she is running around a 14 girth and 9 neck.
I believe the micro is the only one that comes small enough for her. I bought mine at a local store. I do recommend trying your vest on prior to purchase if you can. Ruffwear makes very nice ones too and they are one of the few things by the company that come in tiny sizes.
__________________ Kaira, Alli, and Douglas |