Ultimate Direction made its Access 20 Plus Hydration Waist Pack versatile enough for long runs up in the mountains or quick jaunts through the park. Its Cool Wick Air mesh and Power Stretch mesh provide ample amounts of breathability and mobility to keep you cool and comfortable, and a bit of ripstop keeps everything together for a long time in a lightweight fashion. The straps offer a secure fit, and elasticated holders store the loose ends so you don't run with them flapping around. Ultimate Direction made the included 20 ounce bottle out of BPA free polyethylene, and equipped it with a leakproof Kicker cap for your convenience. It features an extra wide mouth for easy filling and cleaning as well as accommodating most water purifiers. The Access 20 Plus features a semi flexible, angled bottle sleeve that allows you to take the bottle in and out with ease while you're running, and the sleeve has a TPU backing to prevent the bottle from slipping out. You can remove the accessory pocket and gel flask holder for quick sprints around the neighborhood. The main compartment can store your smartphone as well as a few extra snacks or a packable wind jacket, and the internal divider will prevent the snacks from melting onto your phone.