The highest thread count of Single-Ply Sateen Weave in Queen, King and California King sets. The Grand 1500 Thread count fabric is one of the best high count sheets on the Market. These luxury sheets were made with quality in mind. The thinnest possible Egyptian cotton yarn is used and woven in the most advanced weaving looms to create a true master piece in bedding. As the thread count goes higher it makes the challenge greater to maintain softness and durability in such thick fabric, but Royal Tradition has successfully used its resources to keep this 1500 thread count set superior in terms of its softness and durability.