Tweed was invented in the Tweed Valley in the 18th century in Scotland , and is traditionally a coarse cloth woven from pure virgin wool usually in earthy colours . Tweed is very durable and primarily used for country outerwear persuades to keep you warm and dry . The pattern design we used for our Tweed Field Coat is known as "Hob Nail" that is traditional , classic and timeless in design . The Tweed is woven in Scotland and the manufacturing of the Tweed Field Coat is made in England . The outer cloth has been Teflon coated and makes it waterproof . The garment has a internal weather proof breathable system in the form of a drop liner . The drop liner ensures that wind and rain cannot penetrate through the coat . In summery the Hydrophilic Polyurethane Membrane is waterproof , windproof and breathable . The Tweed Field Coat has bellow hand pockets for cartridges , upper hand warming pockets and storm cuffs . The Tweed Field Coat was designed to be practical , durable and to keep you warm and dry during country outdoor adventures .