Malene Birger Black Valtena Stretch Pencil Skirt. Jersey black Malene Birger pencil skirt. Features an elastic waistband for super stretch fit. Skirt by Malene Birger has visible seam detailing on the back and side. Length Valtena Skirt: 63 cm. Malene Birger care instructions: delicate machine wash. Malene Birger material composition: 65% rayon, 30% polyamide, 5% elastene.