About this Style It's no secret we love us a button fly, but sometimes, you need a zipper. Meet the original zip fly from 1967, our 505™ Regular. With its versatile straight leg and classic style, this fit suits all body types and goes with pretty much everything. * The original zip fly, created in 1967 * Cut with a comfortable, roomy fit * Crafted with Authentic Soft: velvety-smooth, stretch denim that gets softer with every wear * Designed with TENCEL™ Lyocell, a soft fiber sourced from wood. TENCEL™ is a trademark of Lenzing AG. * Hold the H2O: This garment was made using recycled water, which helps us to reduce our impact on this finite resource