Under Armour Women's Streaker Long Sleeve Shirt 100% Other Fibers Imported UA Microthread technology in the fabric dries faster, wont cling to you, wont chafe & stretches without absorbing sweat Material wicks sweat & dries really fast 4-way stretch construction moves better in every direction Ergonomic flatlock seams allow you to move free without fear of chafing Shaped hem delivers enhanced coverage without looking big & bulky