Ruffwear Front Range, color: blue, XXS, girth 13-17".
Purchased for Lola, my moms dog, but it doesn't fit her that well. Think she is bigger than I thought and needs size up since she just turned 1. Great condition.
$25 shipped. Retails for $40.
This wouldn't fit a teeny tiny Yorkie, I don't think, but I would presume a dog in the 8-15lb range would be good. Measure their girth because ruffwear's sizing is pretty spot on.
My Jackson fits in the XS and he has a 19.5" girth and is approx 18lbs.