This is as thick as any back pocket wallet I have owned.  I had the other Columbia front pocket wallet, the one that doesn't open, it's just two sided with a slot in the center and that wallet was perfect.  The problem was I lost that wallet.  I looked around here on Amazon and wasn't able to locate that specific wallet that I bought a few months back so thought that this would be similar and OK since it was the same company and everything.  If your looking for a front pocket wallet, I wouldn't suggest this one.  The only thing that makes it "front pocket" maybe is the money clip in the center which just adds to the bulk.
I will be keeping my eyes open for the other "front pocket" wallet.