Brand new unopened 100% TENCEL™ Lyocell. • 320-thread-count. • Textiles of TENCELM are more absorbent than cotton, softer than silk and cooler than linen. • TENCEL™ Lyocell fiber is produced from sustainable hardwood forests. • Set: 1 flat sheet, I fitted sheet and 2 pillowcases (1 with Twin set). • Pillowcases are sold as set of 2. • Fitted sheet fits mattresses up to 16" deep.