+1 on the galco pocket holster. looks just like a wallet in my front pocket, if you can even see it at all! nice looking and i like the little curved end that hooks onto your pant's pocket when drawing. highly recommended!
Sometimes, one holster may not be enough, depending upon the pocket it's in. I have three holsters ( one unknown brand, came with my micro Desert Eagle), and two DeSantis ( Superfly for Nano, and Nemesis N3 ) . As I switch jeans and guns, I also have to match the holster to the jeans. Some options present the grip better in the pocket.