We've covered a lot of minimal wallets here on the Reserve, and many of them feel like they just don't cut the mustard. This Trayvax Element wallet, on the other hand, seems to be just about right.
Small enough to fit nicely into your pocket, but unlike other money clips/tiny wallets, it has a button that ensure that your cards or money won't slip out. The Trayvax has a stainless steel frame and has RFID-resistance built in. It can hold 12 credit cards and 5 bills, and even includes a bottle opener.