As far as ethical materials go you can't really get better than wool.
The sheep need the hair cut.
Nothing dies for it.
Sheep live pretty much wild for most the year.
Placed correctly they maintain a landscape and help the wildlife that live there to thrive.
Doesn't use Vast Quantities of land for little product.
Not draining inland fresh water oceans.
Been spending thousands of years perfecting the genetics for this purpose.
Comes in many different kinds of uses.
And the animal it comes off is fully edible.
My main issue with it is it has fallen so out of fashion that it pays the farmers who make it more to transport it than they get per fleece, and people have really fucking weird hang ups about the ethics of giving a sheep a hair cut.















