Skins Women's A400 Short Sleeve Top 76% Nylon, 24% Spandex More oxygen to your muscles. World's first Dynamic Gradient Compression delivers more oxygen-filled blood to active muscles, increasing endurance, power, and efficiency. Built for motion: Hem gripper around the waist, stretch airflow mesh under the arms, and taped and bonded sleeves ensure maximum comfort and support in any activity. Cold machine wash, gentle cycle, with like colors. Do not bleach, iron, or tumble dry. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!