Luxury Cotton Bed Sheet Set - 4-Piece Full Bedding Sets with Tencel Fitted, Flat Sheet & Pillowcases - Deep Pocket for Easy Mattress CoverageAbout this item 60% Cotton, 40% Tencel(loycell) MULITI FUNCTIONAL SET: Some factory may scamp their work and use cheap material that may cause the bed sheet sets to pilling and shrinking. In the process of designing our product, we adhered to the concept of bringing customers high end use. We added the higher cost Tencel material in our bed sheet set. The purpose is to give you an ultimate sleeping environment when you return home after a busy day.