Duvet covers: Get luxury 100% duvet covers. Duvet sizes: Comes in four sizes, single, double, king or super king. Colours: Choose from four colours, white, powder blue, navy and frost grey. Anti-allergenic: Won't aggravate any allergens, made with allergies in mind! Material: Made from 100% cotton for snug nights. Easy care: Machine washable up to 60 degrees. Luxury 100% Cotton Duvet Covers | Navy | Living Social