Viscose made from Bamboo Pillowcases, Silky Soft and Naturally Pure Woven Pillow cases for Cool Sleep Viscose made from Bamboo is extremely comfortable in all Degrees, keeps you Cool in the Summer and Warm in the Winter Viscose made from Bamboo is perfect for people with Sensitivities. Popular in Skincare and spa amenities for its Relaxation Quality Standard Size Pillowcases set includes 2 Standard pillowcases 20X30" Machine wash in cold water. Delicate cycle. Tumble Dry on low heat. Remove immediately at end of cycle. Warm iron if needed Enjoy the softness silky feeling of the luxurious 100% Rayon Derived from Bamboo Pillowcases. One of the softest Woven fabric in the world on your bed to enjoy a perfect deep sleep. Softer than cotton and more silkier to keep you Cool in the Summer and Warm in the Winter. Machine wash in cold water. Delicate cycle with mild detergent. Tumble Dry on low heat. Remove immediately at the end of the cycle. Press with a warm iron if needed. Do not Use Hot water.