Designed to be layered or worn alone, this long-sleeve base layer top is made of soft jersey knit fabric that uses our sweat-wicking tech to help you stay dry and comfortable. Benefits Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable. Single knit jersey fabric is lightweight and stretchy, allowing the top to move with you. Product Details 90% polyester/10% spandex Machine wash Imported This product provides UVA and UVB protection from the sun only in the areas covered by the garment. To protect exposed areas, the use of good quality sunscreen is recommended.