Since 1894, Barbour has been making high-quality heavy-duty jackets to help shield boat workers from the worst of the elements. Part of the way that it helps shield its wearer is through a thin wax coating on the jacket. However, this coating doesn't stay on permanently. Indeed, you'll have to reproof the jacket every year to keep its maximum effectiveness. Fortunately, the process isn't that tough.
Wipe down the outside of the jacket using a sponge and cold water. Do not use warm water nor try to put it in the washer and dryer, as that will permanently damage the jacket.
Open the top of the can of wax, and put it into a pot full of boiling water. Do not let the water touch the wax, but simply place the can in the water in order to melt the wax inside it.
Dab the wax onto the jacket in small and controlled amounts using a thin piece of cloth such as a dish rag or an old T-shirt. Make sure to take care of creases, cuffs and seams on the jacket. Avoid getting wax on any part that wasn't originally waxed, such as the collar or the jacket's lining.
Hang your jacket on a hanger. Put newspaper underneath it. Now, blow dry all over the jacket. This will melt away the excess wax and give the jacket an all-new sheen. The newspaper will catch the excess wax and keep it from making too much of a mess. Leave it for a day to let it set.
Reproof during a warm day in the summer so the wax stays melted longer. You should reproof your jacket once per year. Barbour will reproof the jacket for you. To use that service, get in touch with your local Barbour vendor.
Do not dry clean your jacket.