Yep - the original waterproof fabrics were oilskin, waxed cotton, and leather. They've mostly been replaced by PU coatings, though you might still go for the ol

Yep - the original waterproof fabrics were oilskin, waxed cotton, and leather. They've mostly been replaced by PU coatings, though you might still go for the old school stuff for abrasion-resistance.