The blue jean that started it all. Our button-fly 501® Original Jean is still straight through the seat, thigh and leg, a bestseller for its one-of-a-kind fit. The tilted waistband pitches toward the front. Wear it true to size or size it up for a looser look. This pair of Levi's® Jeans is part of our program that minimizes water in the finishing process. 100% Cotton.