The Barbour Thornproof Dressing keeps Your Barbour wax cotton garments waterproof and protects the fabric.
It's easy to apply (either to to the whole garment or to the parts
which get the most wear, such as elbows, creases and pocket edges), and
helps preserve both the fabric and its waterproof qualities.
Regular reproofing will not only keep your jacket in peak condition but
will also help to ensure that it keeps you dry for years to come.