Making this post so users can share information on cruelty-free clothing that is built to last.
Ideally this will mean both vegan and natural materials but I'm aware synthetics are near unavoidable. Please feel free to share synthetic materials that are made for long-term / indefinite use.
In summer I typically wear only cotton / linen but as the weather gets colder I'm looking for warm or waterproof winter clothes. I asked this question to a vegan community already and I'll put their responses in a comment below.
I usually use thermals, but synthetics tend to increase BO which can suck if you're working up a sweat.
I'd be keen to hear anyone's suggestions on thick hiking/work socks btw. A day wearing gumboots tends to require the sacrifice of a pair of cotton socks or severe blisters :(