"Waffle texture design gives this duvet thermal properties - keeping you warm all year round Made of 100% cotton making for an impossibly comfortable sleep and fully machine washable This duvet features a secure button closure while the pillowcases have an envelope closure Super king size duvet cover features a 260cm width and 220cm height (102"" x 87"") Includes two matching oxford border pillowcases measuring 61cm x 84cm (24"" x 33""). Pillowcase inserts should measure 51 x 76cm (20 x 30"") or less"