Cotton Reversible Mandala Charcoal Quilt Cover Set (Queen, King) It's time to say goodbye to your boring bedroom with this 250TC 100% Cotton Reversible Mandala Charcoal Quilt Cover Set by Fieldcrest. It features an intricate mandala design printed in White, Silver, and Charcoal colour hues that add a bold bedroom look. It is made from ultra soft and quality 100% Cotton fabric in 250 thread count.