The money belt is tight, keeping the small cash pile safe, and the wallet is plenty big enough for a few cards and Ekster’s neat little Finder Card, so I could track it if the wallet did get lost. Buffway Slim Minimalist Front Pocket RFID Blocking Leather Wallet Each of these slimmer wallets had the same basic elements: two or three card holder pockets on each side, a transparent window that lets you flash your ID without removing it, an inner space that can be used as a cash pocket or to stow a few more cards, RFID blocking on its card sleeve to block electronic pickpocketing and, in the case of the slightly pricier Zitahli, a magnetically attached money clip.