Our 600 thread count woven stripe duvet cover sets are made with 100% Egyptian cotton for exceptional softness. woven stripe design single ply 600 thread countmade with 80s and 100s yarns (yarn size)mercerized 100% Egyptian cotton machine wash made by Echelon HomeEach set comes with a duvet cover and shams. The Twin sets include one standard sham. The Full/Queen sets come with two standard shams. The King sets come with two king shams.