OK, so I know, your first question is probably, “What is a silicone wallet?”
And when I first saw it that was my questions to, but now that I know what it is, I always want to have one on my phone.
But now to answer your question, a silicone wallet is a small silicone holder, with 3M tape on the back that you can stick to your phone, or the case on your phone that can hold 3-4 cards. I use it to carry my drivers licence, credit card and business cards. That way, if you do not want to carry a purse with you, or a wallet, than you have all that you need on your phone, and with you at all times.
It’s at a great cost, and is a great product!