SHEEX Aire Performance SKY Blue STANDARD PILLOWCASES Sheex Aire Performance Standard Pillowcases 2 Standard Pillowcases - 20" x 30" Color: Sky Blue Sleeping peacefully throughout the night means never having to find the "cool side" of the pillow. SHEEX Aire Pillowcases are uniquely designed to increase air flow and keep you cool, dry, and comfortable. These pillowcases are designed to allow fresh air to circulate, maximizing breathability to keep you cozy and comfortable all night long. 88% Polyester/ 12% Spandex - Machine Washable