SoftSpun Square 42" x 42" Table Linens are composed out of 100% Spun Polyester. Spun Polyester has a much stronger durability over a normal polyester fabric. Spun polyester is durable through approximately 300 washings. Numerous washing do not fade the fabric and will make the fabric softer to the touch. Spun Polyester also has better absorbability than regular 100% polyester napkins.