Our Premium 1800 Collection Sheet Set comes with extra pillowcases and features our exclusive ultra-breathable microfiber yarns. Microfiber yarns are known for their unique strength and durability and are double brushed for optimal softness. You will be amazed at how soft and luxurious these sheets are. They have an incredibly softness, are wrinkle resistant, hypoallergenic, and dust mite resistant. The vibrant colors will not fade, even after countless washings. Machine washable, dries quick on tumble dry low. No ironing or complicated cleaning required!