Black organic cotton The Shirred maxi skirt from MATTEAU featuring shirred effect, high waist, elasticated waistband, A-line and ankle-length. POSITIVELY CONSCIOUS: At least 50% of the main material of this product meets our conscious criteria. For example, it's either organic, recycled, upcycled or independently recognised as being better for the environment (such as linen, ramie, TENCEL™ etc.)..