Tempur-Pedic Performance Air Pillowcases are built with exclusive Tempur micromesh fabric, which is 3 times more breathable than cotton for unmatched for cooling and comfort. The exclusive micromesh uses Tencel� brand fabric, which is luxuriously soft and silky. The Tempur Ultifit� construction conforms and stretches for an adaptable fit. Set includes 2 pillowcases. They are machine washable for easy care and continued use. Don't forget to pair these with the Tempur-Pedic Performance Air Sheet Set. # Pieces In Set: 2 Included: 2 Pillowcase - 30x20-Inch Features: Cooling, Moisture Wicking, Easy Care Thread Count: 152 Warmth Factor: Lightweight Pillow Size: Standard/Queen Base Material: 65% Cotton, 35% Tencel Lyocell Care: Machine Wash Material: Cotton Blend Pillow & Cushion Covers Type: Pillow Cases Country of Origin: Imported