["ATHLIO Womens Compression Tops geared for all weather and seasons (Releases heat and wicks moisture with a cool dry effect)" Mix of Polyester & Spandex. Excellent elasticity with enhanced range of motion. Non abrasion fabric material with excellent elasticity and durability MULTI-FUNCTIONAL : Provides UPF 50+ protection Moisture Wicking Properties Quick time Dri 2-Way Air Circulation Athlio comfy shirt is also great to wear under scrubs. Washing Tip : Wash separately before wearing.]