I stumbled across this bag on the Shop Composition web site (they have a few of these on sale right now). I had never heard of this designer - Israel-based Kisim - but am now completely in love with these bags.

I have the medium bag in Orange (the same bag in the main photo). It measures 13" x 11" x 10". The Italian leather is really rich and shiny (but not as shiny as patent leather) yet not too heavy and the interior is made of a fabric. Very light yet very durable. It has two straps and fits comfortable over your shoulder as well as in your hands as a tote. The inside is very roomy and can be stuffed with all of your belongings and yet it also collapses down to a very slim size if you don't want to carry everything you own. There is a zippered pocket on the inside in the middle that is surrounded by two large, roomy pockets. There is one zippered pocket on the interior wall and one pouch pocket on the other interior wall. The bag is fairly open, with only two snaps to pull the inside together to keep your stuff from falling out. It's just a great everyday or traveling purse.

The small bags measure 11" x 8" x 6". There is an even larger version available as well.

These are a little difficult to find in the US. There is a store listing on the Kisim web site. There are the few bags on sale at Shop Composition, and I also found them on sale at Wrapables, only they're called the Taylor Tote for some reason. At these prices you can't not pick one up!

Great bag!! can be found in Coolil.com for the best prices... (via Kisim Bags - Kisim Cube)

Carrie had this bag in a scene from 'Sex in the City'.
I love it, sooo simple. (via Hot Moon Collection)

This bag is the most useful and durable bag I have ever purchased. I found it at Fred Segal Stores.but they did not have the size and color I wanted so have to order it online through I-Design-shop website. The service was fantastic and I received my bag in less than a week.
Very roomy, light and perfect for everyday use. It is simple and beautiful.I will purchase another one in a different color.

Found this cute orange bag from Wrapables.com.
It's on sale for $252.99 now and they're having biggest sale for lot's of products from different depts.

You can find all of Kisim bags at http://www.-deisgn-shop.com

We have them at ModernTribe.com and can special order any size/color you want and have it to you in 3-4 weeks. This bag is seen in the Sex and The City movie. See my blog post on it:
http://blog.moderntribe.com/2008/06/carrie-bradshaw-carries-kisim.html (via ModernTribe.com)