We use 100% certified American grown Long Staple Supima Cotton for our 400 thread count bedding. The strong long staple yarns are woven into luxurious sumptuously soft fabric guaranteeing years of comfort. Pairs with Supima Cotton Sheet Set Details * 2 Pillowcases * Standard Pillowcase: 20" x 30" (50.8 x 76.2 cm) * King Pillowcase: 20" x 40" (50.8 x 101.6 cm) * 400 Thread Count * 100% Supima Cotton * OEKO-TEX Standard 100 Certified * Hand or Machine Washable * Made in India by Mélange Home