As much as I love Coach, I kind of hate their dog carriers
It's very big, bulky and heavy. And it certainly isn't a discreet type of bag. Most Juicy Carriers aren't very discreet either, IMO. They're also rather heavy and not as comfortable as other carriers I've tried. I toted around my 2lb Yorkie in a Juicy carrier and it felt like I had a bowling ball in there!
I love Kwigy-bo carriers. The "Alex" bag is perfect for sneaking your baby into places. No one ever knows there's a dog in there! I got mine at Tinkerbell's closet...it's this one
Kwigy-bo Alex Carrier from Tinkerbell's Closet. It's also very light and comfortable to carry on your shoulders.