Shielding material sample request

Hi
Unfortunately the samples of material that I have managed to get hold of are very small and I am unable to test them effectively. Rather than buy full metres separately I wondered whether anyone had any off cuts they would mind sending to me? (I would of course reimburse postage costs etc). I am looking at fabric to shield against wifi primarily so a high DB. The material I am hoping to get a large sample of initially is Silver Tulle, however if you have a particular type please message me here and I will look it up and see if it meets my criteria.
TIA

Hi,

I actually just started manufacturing silver woven fabric shirts and haven't gotten them tested professionally yet. What equipment do you have?

I can have some fabric sent to you to test if you PayPal me. I just need to know how much you need.

I've been wearing the shirts for a little over a year. They are half Cotton half silver and feel quite comfortable just like a regular t shirt.