Woven from the finest cotton fibers available, these microCotton sheets are made from extra long staple, ring-spun combed cotton that is softer, lighter, and more durable than sheets made from lesser cotton. The sheets have 500 threads per square inch, a sateen weave, and a proprietary finish that expands the space between the cotton fibers to maximize the fabric's ability to absorb moisture and breathe, wicking away humidity from the body to keep you cool during humid summers and warm during cold nights. The fitted sheets have bias-cut pockets that won't slip off of mattress corners and fit mattresses up to 20" deep. Flat sheets and pillowcases are sewn with a double-needle satin pleat. Machine washable. Imported. King Flat Sheet. White, Ivory, Sand, or Smoky Blue.