Cginter, I'm sorry for taking so long to respond. I have a size Small Kwigy-Bo Alex carrier in black. Brand new.
The measurements are: 15" x 5" x 8" according to the Kwigy Bo official site (click link):
Alex Bag Black - Kwigy-Bo
You can view the photos on that page. The bag is made of fake leather, plastic?
Retail price is $170. I will sell for $90 shipped, probably Priority Mail through the US Post Office with signature required.
Please consider the measurements carefully to make sure the bag is the size you want.