The ad says it's leather and RFID protection, both of which aren't true. If it is leather paper that has been shredded and glued, it would be more honest to assume that it is leather impregnated paper. The worst thing is that it won't close even if there are credit cards on one side. So if you fill both sides it will do nothing but live in a permanent L shape. I did a radio transmission test with the O-Scope and there was no loss of amplitude when the wallet was used as a shield so it offers no radio protection.