The RFID blocking wasn’t even a main selling point, I just liked the wallet. Unfortunately it blocks my metro card from working at kiosks forcing me to pull it out every time which is annoying. I was hoping the clear side wouldn’t block it but no such luck.
I don’t know the details of how blocking works and haven’t had any luck searching for solutions since, understandably, most people want the opposite.
Otherwise I’ll just have to go find a new slim wallet.