Upgrade your sleep experience with the microfiber duvet insert by Hospitology. It combines the best of both worlds - luxurious comfort and extreme durability. The outer shell is made from 100% polyester microfiber, a remarkable fabric that combines the softness of natural fibers like cotton, with the durability and hypo-allergenic qualities of polyester. The shell fabric has natural stain-repellent properties that can offer short-term protection from minor spills (though heavier spills would require professional cleaning). The filling used in this duvet insert is a 100% polyester; down alternative which provides great warmth and hypoallergenic properties, with minimal bulk. This high-tech filling also provides excellent temperature-regulating characteristics, getting you right into your comfort zone for an unparalleled sleep experience. This duvet insert combines a slender thickness with surprising warmth. It is thick but provides the warmth of a much bulkier down comforter. Please follow all included care instructions to maintain your duvet.