Egyptian Bedding LUXURIOUS Ultra Soft 100% WOVEN TENCEL LYOCELL Bed Pillow Case Set, Silky Soft, Eco-Friendly & Naturally Pure Fiber from Eucalyptus Trees, King Size, Ivory Luxurious Pillow Cases are Silky Soft & softest New Fabric in the world made from Raw Eucalyptus Trees TENCEL fiber is extracted from raw eucalyptus trees. Its raw fiber is perfectly smooth compared to cotton, wool, and linen. Extremely comfortable in all temperatures, keeps you Cool in the Summer and Warm in the Winter Perfect for people with allergies. Popular in Skincare and spa amenities for its Relaxation Quality King Size Pillow Cases are 20 X 40 inches