Cotton‑polyester blends. The listings show common ratios such as 50% cotton/50% polyester and 55% cotton/45% polyester.
Thread counts listed include 300 and 800, while some listings mark thread count as not applicable. All options use a sateen finish.
Widths are consistently 20 inches across the listings; lengths vary by size, ranging from about 26 inches up to 40 inches depending on the option.
Most listings show a package quantity of two pillowcases; several titles explicitly label the item as a '2 pack.'
Finishing details include a refined 4‑inch hem, envelope‑style enclosures, and mercerization noted as a dyeing/finish process used to help preserve color and durability.