PREMIUM MATERIAL: Filled with 15% Goose Down and 85% Goose Feather, 233 thread count, 100% cotton shell duvet; Oeko-Tex Standard 100 verified, allergenic & dust mite proof. brand new, no stains, no chemical smells WARMTH WITHOUT WEIGHT:DUO-V HOME 13.5 tog duvet insert comforter has just the right amount of thickness for a warm, good night's sleep, won't weigh you down, Like sleeping under a cloud NO SHIFTING & LUXURY: Box stitching design for even spread of filling and ensure the feather and down stays in place.Double stitched sides, high down content - less likely to rip or tear VACUUM PACKED & MACHINE WASHABLE: please open the plastic wrap and allow the flat duvet insert fluff up completely before you wash or use it. Be sure and let the white comforter air fluff and shake It as advised 100% CUSTOMER STISFACTION: 30-Days Money Back Guaranteed for your peace of mind. Any questions, please contact us firstly. We are commited a best solution