Not sure - aluminised mylar may work - not enough aluminium to trigger a metal detector, but the mylar may absorb the RF unless you wear it shiny side out - but then, you would, wouldn't you??
Have no experience with millimetric stuff, but might be worth a bit of searching....
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timeasmymeasure
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Date: 2008-07-30 03:08 pm (UTC)Have no experience with millimetric stuff, but might be worth a bit of searching....