1, 100% Cotton outshell 2, Inserted 100% best long strand mulberry silk 3, With piping alround or double stitching Silk Duvet1) Outer Shell: 100% Cotton Sateen(300TC) 2) Sizes: Standard North America/European/Australia sizes and custom made sizes 3) Filling: 100% best long strand mulberry silk by hand, No machine-made; No chemical added; No bleached, No scrappy silk; No bad odor 4) Weight: ...