SHEEX University of SHEEX Performance Fabric Sheet Set, White 88% Polyester; 12% Spandex Imported Set includes fitted sheet, flat sheet and one standard pillowcase Luxuriously soft and silky for unmatched comfort Breathes 46% better than traditional sheets and transfers body heat twice as effectively to promote the ideal thermal conditions for optimum sleep Four-way stretch and ultra-strong elastic ensure a great fit on Twin/Twin XL mattresses Wicks moisture to keep you dry and comfortable