Bitcoin Bags are a great defensive against dangerous power surges and explosions.
Concerned about EMPs?
An EMP would cause electromagnetic interference that could damage a crypto wallet.
Since the Bitcoin Bag is a Faraday Bag it should help protect against that, although there is no guarantee, since there’s not really a whole lot of information about EMPs.
A Bitcoin Bag is big enough to hold an oversized cellphone or a few hardware wallets.