100 Percent Extra-Long-Staple Pima Cotton With Single-Ply Authentic 310 Thread Count/ True Sateen Weave And Lockstitch Construction For Durability/ Sized Longer And Wider Than Typical Sheets/ Designed For A Perfect Fit On Tempur-Pedic Mattresses/ 360-Degree 1-Inch Binding And Patented Corner Straps/ White Finish