The soft and smooth 233 thread count 100 % cotton casing is breathable and will wick away moisture as you sleep for a fresher start to your day. Filled with premium responsibly sourced white goose feather down (90% waterfowl feather / 10% down), this generously filled feather-down comforter is a real delight. It's pleasingly weighty thanks to the small, soft goose feathers down we use. You can use it as a standalone comforter or duvet insert. The longer you use our luxury comforter, the more comfortable and fluffy our luxury feather-down comfort will become, and the crunch of the feathers will disappear, there will be no feathers poking you and no odor. Hurray!