Welcome to du-ran.com, a division of Madsu Consulting Group Inc. Madsu Consulting Group is a privately held company that started as a mail order business providing people with specialty headgear. Now we supply over 400 businesses with premium quality durags and wavecaps. Du-Ran durags and wavecaps are made of premium long lasting fabrics to ensure great quality. Our specialty is producing effective and stylish headwear. Madsu Consulting Group designs and controls the manufacturing of all durags and wavecaps to provide quality and effective headwear at a fair price.