PARANOID PRIVACY GEEKS have never been comfortable with those tap-to-pay credit cards and certain office-access cards that many of us have to carry, because they have tiny antennas that can convey data (usually encrypted) over low-power radio waves.

One way to jam that transmission? Using a radio-frequency-blocking wallet, which are commonly lined with a special foil. Although they were once strictly available in stodgy neutrals, these niche wallets have fashionably evolved to satisfy everyone on the sartorial spectrum,...

( TAGS : Men's Style, Tech, Gear, Fashion, Gadgets )