Run the distance in Under Armour Streaker Short Sleeve, built to help you run longer and faster, with a crazy soft fabric that stretches with you, wicks sweat, dries fast, and gives you maximum breathability. UA Microthread technology in the fabric dries faster, won't cling to you, won't chafe & stretches without absorbing sweat. Material wicks sweat & dries really fast. Reflective details for greater visibility on low-light runs. Crew neck. Short sleeves Mesh panels for added breathability. Dropped, shaped hem for enhanced coverage. Machine wash. 93% polyester, 7% elasterell.