100% Egyptian Cotton – Sateen WeaveImported100% BREATHABLE EGYPTIAN COTTON – Made of 100% egyptian cotton, the 400-thread-count pillowcases offer not only a soft hand feel, but also provide comfortable breathability and reliable strength for a neat and tidy appearance. They are woven in a sateen weave structure for a smooth touch and lustrous look similar to satin.TIGHT WEAVE & 400 THREAD COUNT – Our cotton pillow covers have a pore size of just 3-4 microns and they are woven super-tight for ultimate protection, breathability and comfort.STYLISH 4 HEM DESIGN & PERFECT FIT – Measuring 20 W x 40 L finished size, the king-size pillowcases fully cover king-size pillows which are 20 W x 36 L, offering secure placement and a smooth finish.EASY TO CARE FOR – The durable cotton material of the pillow cover is designed to resist shrinkage and maintain pore size through repeated laundering. Wash separetely before first use, warm machine wash, tumble dry low. Do not bleach or dry clean.PILLOWCASE SOLD IN PAIRS – Standard pillowcases measure 20 W x 30 L each (set of 2). King pillowcases measure 20 W x 40 each L (set of 2).