Linen Fabric is made by refining Flax at the loom. You use the linen fabrics combined with ores to make the other specific fabrics. Everytime you see 'green grass' or 'hemp grass' or other harvestable nature nodes in the world, theres a good chance you'll get a flax or two when you harvest them. flax can be found in the resource tab of your inventory, while green grass and hemp can be found in the loot tab.

I think adding where you can find the base fabrics would be a plus otherwise good job listing what you can find in the game without actually having to go to the machines

since i forget things easily this helped me alot, thank you

My first Guide. not really a guide, but a table of what things cost to make