Unbelievably soft and refreshingly cool, you might think it's sorcery. The Evercool+® Cooling Sheet Set AND flat sheet, featuring IONIC+™ technology, effortlessly combats microbes and odor-producing bacteria on the fabric. The Evercool®+ Sheet Set consists of two main ingredients: A nylon and spandex blend and IONIC+ Antimicrobial Technology silver yarn. The advance nylon used offers the cool to the touch effect, high moisture wicking capability and silky touch. The spandex gives the outer shell a little stretch to improve on the anti-sagging properties and machine washability. IONIC+ Antimicrobial Technology silver yarn is permanent and never washes out. It helps the fabric stay fresher, cleaner, and lasting longer. EKO-TEX® certified Hypoallergenic Pet friendly Machine washable Includes: 1 Fitted Sheet 2 Pillowcases 1 flat sheet Arctic White color Queen size Excellent condition They were only used for 1 night and then washed in gentle detergent (the sheets were just not right for me - my loss is your gain)