This wallet does not block RFID at all.  I used the shielded pouches, placed my RFID access card in there and tested it on a few different models of RFID readers (at work).  In every instance the badge access was allowed and at roughly the same distance as with no wallet at all.  The one reason I left this with 2 stars instead of 1 because it is still usable as a slim wallet which I need for trips.