Modern update on a classic. Everything you like about Levi's 511 Slim, but updated with a narrow fit through the thigh and tapered leg for the fashion-forward guy. Comfortable Fit. These jeans have just the right amount of stretch for all-day comfort. The Levi's 512 slim-fit Jeans stretch vertically instead of horizontally, and move in all the ways you do, while still keeping their shape. Classic Features. The iconic Levi's red tab on the back pocket enhances the five-pocket design, with zip fly and Levis branded silverware.