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I'm a paranoid IT guy who also happens to have a degree in Electronics with an emphasis on radio (my primary instructor was a radar man.) With Euro-style chip-and-PIN cards coming to the States, this is a big question in a number of places. There were a couple of shops that sold small batches at one point, but they have gone by the wayside. What you have available now is a lined Tyvek product that comes as a sleeve for individual cards, or you can buy several different grades of RFID-blocking material by the yard just like fabric at Joanne's. The way I would do it is to buy the fabric and cut out a piece just smaller than the wallet back, glue it to that, and then line it with another leather,. This will protect your cards when the wallet is closed in your pocket without the headache of trying to line the individual pockets. (I purchased a commercial RFID-proof wallet a while back, and this is how it is constructed.) Failing the fabric, two layers of heavy kitchen foil will do the trick but you may get some unwanted wrinkly noises as you open and close the wallet, depending on your glue methods. (That commercial wallet I mentioned does this - that's what led me to testing just heavy kitchen foil.) Your mileage, of course, may vary. i did my testing with a common brand of ID badge at a couple of locations where the building has restricted access. (My clients are paranoid too.)

RFID information can be found on any spy prevention page. Even intelligence services pages offer information. Bottom line is simple. The person has to get pretty close to you to read the RFID chip. About 1.5 m or 5'. The most simple solution is aluminum foil. Not the household grade! Tons of information on it https://www.google.de/search?q=rfid+blocking+aluminum+wallet&oq=RFID+blocking+al&aqs=chrome.1.69i57j0l5.8937j0j7&client=ubuntu&sourceid=chrome&es_sm=122&ie=UTF-8&gfe_rd=cr&ei=DngKVZD4Jou2-Qbh2IDICA The question to ask is, do I need the RFID and can I disable it? How that's being done can also be found with the above link. If you really want to screw with it you could build a RFID scrambler/jammer, what ever they are called. They are also available on the market.

If you get to your Tandy store (or any other store that actually carries leather, Hobby Lobby even) then you can purchase a bag of scrap that will work for practice and get it at a decent price. And to answer your question about the case on that phone wallet: yes, I did attach a snap on TPU case to the lining leather. I have a supplier in California for those TPU cases where I can get them for the more popular device models for a very good price. There is also an RFID blocking layer that has been added to this one as beginning this year all of the credit/debit cards that carry a logo on them are required to include the new (to us, carried it in Europe on every card I had over 20 years ago) RFID security chips. American Express has incorporated that technology for years and I just happen to have a business card with it so I included that for the new 2015 project line up. You are starting down a path towards a craft that is a very long, but highly rewarding, journey and with it you can release your creativity and pretty much do whatever your mind can visualize. Get some practice in, solicit critique, and have fun with it. Again, welcome to the world of leather.

My dh's wallet was falling apart so I decided to try and make a new one. After the discussion about the RFID in cards, I lined the back of the card sections with aluminum tape, then covered with fabric. I really didn't like the way it changed the texture of the leather but hopefully it will work. It only is really noticeable above the ID section. I need to work on the trimming of the binding. I found it really difficult as the goat is pretty stretchy. It also made skiving impossible, at least for me, so the card section is thicker than I would like. I could have used fabric with a leather strip on top for the card slots but wanted to keep the fabric component to a minumum.

I was reading up on it and it appears the RFID chip signal is omnidirectional.

More comfortable than aluminum foil in your pants. There's some seriously scary stuff out there in the world -- from bird flu and terrorism to depleting our planet of natural resources. There's not a lot that the average person can do about much of the things that may keep us up at night. Luckily, there's one scary prospect on the horizon that we can help with -- and it doesn't require lining your pants with aluminum foil! Aren't you lucky? Imagine if you will, some of these possible real-life scenarios: A shadowy character crouches unseen in the bushes. He doesn't have a gun or a knife, but he has a laptop. He watches as his prey walks by. Invisible radio waves emitting from the credit-card in his wallet get picked up by the laptop, recorded, and saved onto a cloned card. For all intents and purposes, this man becomes you, and has decided to go shopping. Or maybe he picked up the passkey that lets you into your office building. With ease, he can now walk into your secure office building and steal your company's equipment. The next morning, security guards are waiting in your cube to have a chat. The nightmare scenario was brought forth recently - a bomb lies waiting in a garbage can. Sensitive electronics read the identification cards and passports of the people who walk by, waiting until somebody of your nationality comes close... It's a scary world out there. Credit card companies and governments are putting RFID chips in your cards and identification, sometimes without your knowledge. Protect yourself and your money with a wallet that specifically inhibits those radio frequencies from escaping until you pull your card out. Did we mention you don't need to put foil in your pants? It's important to us that you know that you do NOT have to put foil in your pants. Very important. No foil. In your pants... none... zip... nada. Well I been making billfolds and other leather items for 53 years. I went on the net to find out for myself what all this chatter was about security billfolds to block RFID transmissions and how I could make one. Seems like its pretty easy to do. I checked on Instructables an You-Tube. Seems all I needed was thin layer of tin foil between the outside layer and inside layers of the billfold. I found many types of foil. You can buy tape foil or thin layers. So if your like me now you can give your customers an added feature with a RFID blocking billfold or purse. Seems to me to that now the billfold Mfg. Are charging an arm and leg for there secure products so this should give us a legs up on pricing to give are customers a brake for once. We know it won't ad much to the price to make it secure for them.

Last Friday I read a recent article in Consumer Reports about how to protect your credit & bank cards from ID theft. Apparently there are ways to prevent Radio Frequency ID tags from cards in your wallet - being transmitted onto recording devices…. It looks like the easiest way is to wrap your cards in tin foil. I found a neat set of directions for making a Duct Tape wallet Duct Tape Wallet and how to add tin foil to it Duct Tape wallet w/tin foil I did a search here for tin foil and found nothing on the subject and then I went on-line to research the subject. Then I googled 'wallet to protect card from ID theft' and there are all kinds of things available out there for sale. Wallets, checkbooks, and Pasport cases... Anything that holds bank or credit cards, etc. From what I read on-line - RFID chips now exist in: # Chase's Blink Credit Card # Mastercard PayPass Credit Card # Many Corporate IDs # Many University IDs # United States Passports # Euro Passports It could also be a selling point for those special items… You could have some with and some without the foil. *RFID blocking technology protects personal information embedded in many debit/credit cards and US passports issued after October 2006 It sure would be easy to add aluminum foil to your Wallets, checkbooks, and Pasport cases... Anything that holds bank or credit cards, etc. by putting the aluminum foil under the lining material. A couple of small dollops of glue should hold it in place while you are sewing it up. So I have been wondering if any of you had heard about this or know about this or have thought about adding aluminum foil to your wallets or ID cases or anything that also holds ID cards?

I imbed a RFID chip in everyone of my trees that I get from Tacktrac, this number is assigned to the specs of a particular tree (serialized inventory) that number gets matched up with a saddle number for the saddle specifications. I use this system on a daily basis to help people who are buying and selling our saddles used. In addition I use a code that is stamped on the latigoe catcher that tells me just about everyting we need to know about the saddle. The saddles number is also stamped on the skirt where it can't be removed. I also keep a paper copy of every thing on a file for the customer David Genadek