Madilyn strapless denim dress from REFORMATION featuring blue, cotton, strapless, seam detailing, fitted waistline and raw-cut hem. POSITIVELY CONSCIOUS: We've partnered with Good On You — an ethical agency that rates how sustainably brands perform across various people, planet and animal welfare criteria. This product comes from a Conscious brand that performs well in relation to their impact on the planet, for example ensures the use of materials that limit the amount of chemicals, water and wastewater involved in production processes..