Women's COS Sparkly Ribbed-knit Maxi Skirt - Gray - Maxi skirts Part of the COS AW23 collection, this ribbed maxi skirt debuted on the runway at New York Fashion Week. Shaped for a slim fit that flares out at the hem, it's offered in a charcoal-gray hue and designed with an elasticated waistband and an internal mini skirt. It's knitted with metallic threads that catch the light as you move, matching the coordinating shirt.