100% Viscose from Bamboo Silky Pillowcase Set (Linen, Standard) 100% Rayon from Bamboo Pillowcase Set Pillowcases are soft to the touch with a smooth, silky feel With bamboo's unique thermal regulating quality, you can stay warm in the winter and cool in the summer Set Includes Two Standard Size Pillowcases, 20" x 30" each Machine wash in cold water only. Delicate cycle. No Bleach. Tumble Dry on low heat. Remove immediately at end of cycle. Press with warm iron if needed