Skin-friendly 300-thread-count 100% cotton shell, double-brushed & pre-shrunk for extra softness and breathability. Premium 750 fill-power feathers & down 50% Down Fiber 25% Down 15% Feather Fiber 10% Feathers) filling make our duvet insert soft, breathable, fluffy, and lightweight but warm. Our feather-down comforters are meticulously processed and carefully handcrafted by skilled artisans with impeccable attention to detail. So you get the softest, fluffiest, leak-proof, skin-friendly, and breathable down comforters that you might even pass down to your future generations. The longer you use it, 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!