Made to manage the damp and chilly conditions of the Pacific Northwest, Filson's Tin Cloth Primaloft Jacket pairs a traditional fabric with premium insulation for an old-school look and new-school performance, Tin Cloth is a cotton canvas treated with max to add moisture resistance, and Filson has paired it with PrimaLoft, a premium synthetic fill that insulates even if it gets wet. That combination keeps us warm and dry in a rugged-looking package with a lot of character.