The 25 Momme line of duvet covers are the epitome of high-end luxury silk beddingware - in fact these are the best silk you can buy on the market right now and anything higher belong to the domain of special orders from the ultra high profile demographic including the British Royal Family. Selected from the best of raw Mulberry silk the 25 Momme silk excels in all areas from fiber strength to light refraction uniformness. Combined with a dense Charmeuse weave (750+ thread count) the 25 Momme silk is very durable all the while being more beautiful and comfortable.