I'm not convinced that RFID products are really needed yet.  Yes, you hear stories of technology on how easy it would be to swipe your passport and credit card information.  But how prevalent is it and is it worth everyone starting to buy this type of RFID shielding?  I don't know and wonder if it's still overkill right now.  BUT, it gives me some piece of mind when I travel so I use it.  It is easy enough to put stuff in this wallet with a big pouch.  I have a low profile wallet (Saddleback leather, small ID wallet) and a passport that I shove in this product when I travel and toss it in my travel bag.  Fits great; easy peasy.  I don't go crazy and use this daily, nor do I freak out if I don't have my passport and wallet in this pouch.  Bottom line - if you want some piece of mind and want to protect both your passport and small wallet, this is a good product due to its versatility.  The black is probably better than the grey as it won't show dirt smudges as readily.