I know that S1 gloves are easily lighten the color by damp them a little and putting them in the sun for a while. I'm in the process of sewing my own Jumpsuit but I haven't decided which material to use.
I was wondering if cotton and twill can be lighten like S1 gloves do. I know that twill is a thicker material, like for work coveralls, but I'm looking for something more comfortable and cool to wear (plus the armor, vest, and JP harness...will be pretty hot), besides that I could weather them as well. If someone knows about fabrics and the characteristics of them, give me some feedback here.