QUALITY MATERIAL : 100% Polyester Microfiber. We manufacture in-house we have complete control of every single manufacturing process of our products. Each product goes through 5 quality checks. Made of the highest quality microfiber and workmanship so you know it LASTS! PRODUCT: King size set includes 1 Flat Sheet, 1 Fitted Sheet and 2 Standard Pillowcase. Easy to care: machine wash, no bleach, tumble dry low. LUXURIOUS FEEL : The smooth feel of the sheet is very cozy which keeps you cool during summers and warm during winters. The microfiber material is processed to make it resistant to shrinkage and fading which adds to the longevity of the set by keeping it in great condition. Fabulous selection of colors will make your bedroom look like it belongs in a magazine. OEKO-TEX MANUFACTURED : Woven, Processed, and Stitched in-house at our own dedicated vertically integrated manufacturing facility. This facility is CERTIFIED STANDARD 100 by OEKO-TEX: an independent certification system for textiles that tests products for harmful substances. Boston Linen is a kind of company that prides itself in providing the absolute best customer service in the industry. Customer satisfaction is our top priority and we mean it. We stand by every single one of our products.