Alice and Olivia Black Legging Pants. A & O's super versatile black leggings with a front center exposed zipper, will make the coolest foundation to your off-duty looks. Cut from mid-weight stretch-jersey, this figure-sculpting pair are perfect to wear with everything from chunky knits to vintage-inspired blouses. 75% Viscose, 20% Polyester, 5% Spandex.