EtaProof 170, waterproof cotton, 170g/sqm, 2nd choice

Weatherproof, very breathable, densely woven cotton with a durable water repellency. This high-quality 100% cotton-material doesn't need a coating or a membrane so it's naturally breathable. Due to its very fine fibres and a high-quality impregnation it sheds wind, water ans snow. EtaProof is durable, easy to care and easy to sew. The dense weaving makes it also downproof. Seamsealing is unnecessary: Use a cotton/polyester core-spun yarn like rasant and a slim needle to sew - the swelling cotton prevents water from leaking through. In case this doesn't work you can seal the seams with the Seamtape for coated fabrics, 22mm.