Close your eyes. Think of a pair of jeans. Open now. It was 501®, right? This model, which is literally the ancestor of all jeans with its classic straight leg cut and iconic style, has gained a place in the world's collective cortex since it was invented by Levi Strauss (himself!) in 1873. It has never gone out of fashion until now. It will never go away. Made with our slightly stretchy Comfort Stretch fabric for all-day comfort. 99% Cotton 1% Elastane