The Black H’mong minority people of Northern Vietnam are famous for decorating their hand loomed fabrics with natural indigo batik. It’s a time consuming process, dye is extracted from the Indigo plant, left to ferment producing the intense indigo blue colour liquid. The natural coloured hand spun fabric is painted with wax, then dipped into the Indigo dye and dried several times. Each time taking several days to complete. Once the fabric is rich with dye, it is washed in hot water to remove the wax leaving the unique design behind.