I also have this one -
PetEdge: East Side Collection Croc Pet Carriers
I have a small in brown and a medium in red. I had to pick up my daughter from high school during the school day a couple of weeks ago and had a puppy with me and so I took him in with me to get her in the small brown one. Nobody even noticed!! I don't know if I could have gotten away with it with the big red one, though. It's pretty big and draws attention.