Pacific Linens White Pillowcases, 180 Thread Count 2-Pack Size (Standard) 50% Cotton/50% Polyester Free Economy Shipping to Continental USA. 1 Pair of Standard Size Pillowcases 180 Thread Count Poly-Cotton fabric Ideal for Home Bedding, Crafts, Prints, Embroidery projects Machine Washable, Comes out wrinkle free after every wash