Keep an eye out at thrift shops, maybe? I assume those exist near you. Probably much less availability that way, so you might have to look for a while, and fewer pattern options as a result, but cheaper and for a test maybe better because already pre-softened through wash and wear?
I think I have to give linen a second chance. Or maybe modal/lycocell/etc. Germany isn’t sub Saharan warm, but I’m built like an oven 😐
Edit: oh, this is why I gave up on them. I’m not paying 85€ for a single shirt
Bamboo? I have bamboo socks that are warm and soft, but they take a little extra to dry
I tried, but it was really hard finding good quality. It shrunk to show my soft, rosy belly 😐
Keep an eye out at thrift shops, maybe? I assume those exist near you. Probably much less availability that way, so you might have to look for a while, and fewer pattern options as a result, but cheaper and for a test maybe better because already pre-softened through wash and wear?