Trails and commuting, all-day adventure and riding around town: Giant's Cascade 3 is your hydration and gear-hauling solution. With a 100-ounce/3-liter hydration reservoir in the insulated sleeve you can be sure to stay hydrated. And, with 15 liters of cargo space you can carry the gear, clothing, and nutrition you need. Lightweight, water-resistant fabric protects your gear, while quick access external pockets, and a removable front pocket keep your gear organized. If the weather turns, there's a built-in rain cover to protect your bag. Contoured mesh back panels and high ventilation mesh shoulder straps prevent you from overheating.