Driza-Bone demonstrates its commitment to service and quality in the best way possible, with a twelve month guarantee anywhere in the world against any faulty materials or workmanship. To validate the guarantee, your Driza-Bone needs to be worn and cared for in accordance with the care instructions on the label. The following care hints will help prolong the life of your favourite Driza-Bone. Although the heavyweight wax Driza-Bone garments can be hosed down or sponged with cold water, they should not be dry cleaned, washed with detergent or cleaned in hot water. If necessary they can be washed with pure soap in lukewarm water but the garment may then need re-proofing. In all cases please refer to the care label with each garment for detailed instructions. Over the years of use, areas that appear lighter in colour on the traditional heavyweight wax indicate where re-proofing may be required.