Nautica Boat Stripe Wrinkle-Resistant Sheet Set, Twin 60% Cotton/ 40% Polyester Imported Set includes flat sheet, fitted sheet and 1 pillowcase Sheets are 60Percent Cotton and 40Percent polyester, helps prevent wrinkling Fitted sheet has elastic on all sides ensures a better fit and prevents the sheet from slipping up over the mattress Twin XL sheet sets are perfect for dorm rooms and Hospital beds