Luxlen Extra Warm Down Alternative Comforter - Luxury Single Ply 500 Thread Count (King) King / Cal King Bedding Extra Warm down alternative comforter Singly Ply gives a true 500 TC comforter as opposed to multi-threaded ones Box stitching to prevent fill from shifting and Staintech Treatmented 100% Cotton Shell Casing with Garnetted Polyester Fill and anti-microbial treatment King / California King 108"x98" with 10 oz/sq yard fill