Keep your Barbour waxed gear waterproof and strong with this Barbour jacket accessory. Thornproof dressing is the exact formula used by Barbour to waterproof jackets in its factories. Easy to apply, simply use it on areas that are getting the most wear, or re-dress an entire jacket. Full details and instructions are printed on the can. One 200ml. tin is enough to completely treat one full-length coat or two jackets.