NOTE!!! Sub Shell being used currently - shell has small blue piping around the edges - all else exactly the same! All Season Weight Premium Down Alt Comforter. Luxurious 330TC 100% Cotton Sateen cover filled with premium down alternative polyester fill. Baffle box Construction creates maximize loft and comfort, and minimizes cold spots. Double stitched edge piping ensures strength and durability for years to come. Corner loops provide an easy way to tie a duvet cover on and keep it in place! All Season Weight - great for any time any place year round use.