How Much Conductive Fibre Do You Need?
We’ve experimented with a variety of fabrics that have silver fibre in 35%, 45%, 50% and 60% of the overall fabric. All of these are highly conductive for earthing and we didn’t notice any difference in earthing effectiveness.
For our silver range, we settled on 50% so we could have silver twisted around every single fibre of Tencel in our fabric. The extra silver also acts as a buffer against oxidisation.
For our premium range, we use 18% stainless steel filament as no buffer is needed against oxidisation as this metal cannot be damaged by sulphur in sweat.
The earthing strength is the same across our two ranges, but the stainless steel remains conductive for longer, hence the longer warranty.