What about Ventile cotton? That absorbs water and turns waterproof. It was used for immersion suits in the war! It was a long time favourite with hunters and

What about Ventile cotton? That absorbs water and turns waterproof. It was used for immersion suits in the war! It was a long time favourite with hunters and special forces due to it not rustling. It was also very durable. https://en.m.wikipedia.org/wiki/Ventile https://en.m.wikipedia.org/wiki/Ventile