If your on a budget you can also use aluminum foil. It will be just as effective for blocking GPS and you can shape it to fit a pant pocket.
Pretty easy to block GPS signal even driving through a forest or a cloudy day can severely degrade the GPS signal.
Things like this product and aluminum foil are not a cure all though. As technology marches on, the chips and signals get stronger in phones and in scanners. For signals like the NFC (Near Field Communication), If close enough even with the whole roll of aluminum foil there is a chance information can still be transfered.
If your on a budget you can also use aluminum foil. It will be just as effective for blocking GPS and you can shape it to fit a pant pocket.
Pretty easy to block GPS signal even driving through a forest or a cloudy day can severely degrade the GPS signal.
Things like this product and aluminum foil are not a cure all though. As technology marches on, the chips and signals get stronger in phones and in scanners. For signals like the NFC (Near Field Communication), If close enough even with the whole roll of aluminum foil there is a chance information can still be transfered.
If your ass is on a budget?
Use mumetal.