I don't use a wallet anymore...I use a "Slim Clip" (ebay - under $10 incl. shipping)...cash on one side, cards on the other. I hate carrying an overstuffed wallet, so I keep just the bare essentials in the clip, and a wallet with my lesser used cards in my locked vehicle. I carry the clip in the front pocket, which I also prefer. I assume since metal covers the whole card except about 1/4 inch on the end, it would protect the cards from being read?
I use a leather business card holder as my wallet. Very slim even with driver’s license, health ID cards, 3 credit cards and my Costco card (got to have that); and cash with receipts for the day.