Lauren Ralph Lauren 500 Thread Count Dobby Stripe King Down Comforter 500-thread count cotton; Luxurious white goose down fill 100% cotton ultra-brushed fabric for the softest hand 600 fill power white down for year round warmth Oversized ad finished with corner loops to perfectly fit your Ralph Lauren duvet cover. Featuring the Arctic Fresh guarantee: The Arctic Fresh process eliminates odors and insures optimum lofting properties.