88% Polyester , 12% Spandex. Moisture-wicking stretchy breathable mesh fabric Imported Pull On closure Machine Wash √ Thumb holes keep the sleeves from shifting or flapping in the wind, and add a little more coverage in cool weather √ The open back and slightly loose fit creates a breezy feel with more cooling as your run heats up √ Dropped back hem for enhanced coverage and chick high-low look √ Banded crew neckline make sure it's stretchy √ Ideal long sleeve shirts for yoga, exercise, fitness, gym, running, any type of workout or everyday use Show more