Levi's 511 Slim Fit Soft Twill Jeans Nightwatch Navy Bi Stretch - 04511-2617.A modern slim with room to move, the 511 Slim Fit Pants are a classic since right now. These pants sit below the waist with a slim fit from hip to ankle. This pair has just the right amount of stretch for all-day comfort. The narrow leg means endless style options. For a laid-back daytime look, try a slightly scrunched leg and sneakers. Once night rolls around, try a 2-inch cuff with a Chelsea boot.