>>1997999You know sailors and fishermen wear rainslicks over the wool right
They would grease their sails to waterproof them and scrap sailcloth was fashioned into capes and smocks, because nobody likes being wet. Eventually the grease was swapped out for paraffin wax and tar, giving us oilskin
Eskimos had the same idea, leather anoraks soaked in fish oil to keep the wet out
