[luv-talk] Faraday-bag for my mobile phone ?

Assembled Illuminati; I am investigating making a flexible faraday-cage for my mobile phone; some sort of metalised fabric seemed like the go. Aluminium foil works but is not robust; curiously metalised plastic film, eg chip packet doesn't, film too thin ?; perhaps something like space-blanket material ?; anyway any suggestions welcome; especially with supply sourced; regards Rohan McLeod