Twin/Twin XL 400 Thread Count Printed Pattern Performance Sheet Set Ditsy Floral - Threshold™ NWT Our most popular sheet, smooth and silky sateen 100% cotton with 400 thread count Top and bottom labels for easy placement Patented fit technology to stay in place and fits mattresses up to 18" Fitted sheet includes full perimeter elastic to stay secure to your mattress Wrinkle, pill and shrink resistant plus bleach friendly for easy care Oeko-Tex certified for no harmful substances Oeko-Tex Standard 100 Certification Number: 11-31820