Vertx Gamut Backpack Black Nylon Zipper Closure Comfortable, customizable and incognito, the Gamut is an everyday pack that's anything but ordinary. No matter the application, the Gamut is optimized to stow all the gear you need and then some. It features a brand-new Rapid Access Pull tab that can be swapped from zipper-to-zipper and interchanged with other pull styles for a fully customized EDC setup. Its main compartment opens 180 for easier access to gear and is lined using VELCRO Brand loop for added customization options.