The Heavy Weight Duvet Inserts Baffle Box Design 2 PK are crafted from ultra-soft 100% cotton T-233 top/shell and filled with cloud-like micro gel fibers and have four corner loops to make sure the fluffy shape of the comforters stay intact. It offers superior warmth and a luxurious feel for customers when used as an insert or comforter. This duvet insert is crafted with superior materials for unparalleled comfort and warmth. High quality 100% cotton and micro gel fiber make it an ideal choice for a sound sleep and a luxurious experience.