100% Mulberry Silk Fleece Surface, 100% Cotton Core (Overall: 80% Silk / 20% Cotton ). Standard US Size: KING: 108 IN x 90 IN (274 CM x 229 CM) , weighs approx 5.5lb (2500grams). Finely crafted with premium mulberry silk and satin boarders, this bed blanket offers supreme softness and warmth. Silk is smooth, soft and skin-friendly, so it won’t irritate your skin, which is much better than wool. Silk is naturally breathable and lightweighted, so it helps to maintain a more stable temperature throughout the night without feeling bulky, suitable for all seasons in bed room. Perfect gift for birthdays, anniversaries, weddings, holidays and other occasions. Tips to Identify Real Silk: This is not a standard test, however, it is fairly definitive! Extract a few yarns off from the fabric edge and put on flame. Genuine silk smells like burning hair and produces black, powdery ash. It will stop burning immediately when leaving the flame. A synthetic fiber smells like burning plastic, produces black smoke and a black ball of residue (not ash). It will continue to burn even after leaving the flame. Cotton or Viscose smells like burning paper. Ship from the US & Fulfilled by Amazon. 100% satisfaction & full refund is guaranteed in case any problem or dissatisfaction.