http://www.bigskinny.net/acrobat.html

I had this for over a year now and just love it.

The Acrobat has a money clip, but if you prefer an equivalent with a billfold compartment, then their Multi-Pocket Bifold should be a very nice choice :-

http://www.bigskinny.net/multi-pocket.html

The outline of the Acrobat is barely larger than a credit card but has many compartments to swallow up a respectable amount of cards without getting fat. I like the integrated money clip. You can remove it from the wallet if you choose, but I found it to be a very efficient and functional way to carry my money without adding bulk. It is spring tensioned, of decent quality and has the ability to hold 1 bill or a large wad of cash if the need arises. I’ve had 40 folded bills on the money clip along with 6 credit sized platic cards with no problems. While 40 bills will bulk the wallet up, it serves to illustrate a few things :-

The money clip can hold as little or as much within pragmatic means.

If you stuff 40 bills along with 6 plastic cards in your generic leather bifold, it will be like carrying a hockey puck in your pants.

In comparison, the little Acrobat will do all this but still leave a manageably compact package in relation to any other wallet I have tried. Normally though, I carry much less cash, in which case the Acrobat leaves such a tiny footprint, I find myself patting my front pocket to make sure it is still there.

All in all, a really great piece of kit. And its washable too. Absolutely no complaints.