This duvet is made with soft, plush microfiber fill, a high quality polyester that's meant to mimic the softness of down. The shell is a crisp, durable 260 thread count cotton. Microfiber doesn't have the same insulating properties as down, so microfiber duvets are heavier weight. A fair bit of fill is required to achieve the desired warmth. One benefit of a synthetic duvet is that it can be machine washed at home, given your machine is quite large and you wash/dry on a low heat setting. Natural down and feather are sensitive to moisture, but polyester is not! This generously-filled All Season Weight is warm enough for cold sleepers or cool room temperatures. Features - Box Construction - Boxes to prevent content from shifting 260 Thread Count - Prevents fill from escaping 100% Cotton - Fine cotton allows the fill to breathe Corner Loops - Loops on all 4 corners to tie and anchor the duvet in place Microfiber - Down-like luxury and benefits from technically advanced microscopic synthetic fibers Easy Care - May machine wash and dry or have professionally cleaned / Filling completely re-lofts after washing Hypo Allergenic - Synthetic Microfiber filling naturally resists bacteria and other allergens Guaranteed Quality - Guaranteed against manufacturing defects for 3 Years OEKO-TEX Standard 100 Certified Imported Standard Dimensions - Twin - 64" x 86", 45 oz Fill Double/Full - 78" x 86", 56 oz Fill Queen - 88" x 90", 65 oz Fill King - 102" x 90", 74 oz Fill