These purse organizers were originally designed to keep women’s purses organized and to make it simpler to change bags, but I don’t see any reason why guys couldn’t make use of them in gear bags, too. This Travelon RFID Blocking Purse Organizer has a woven metallic fabric sandwiched inside the walls to protect RFID cards and badges stored inside from being read. It comes in two sizes to fit your bag – medium for $21.95 or large for $23.95. It can be ordered from Corporate Travel Safety or Amazon.