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The Juan Daypack by Indigo is proof that technical features and efficient designs are not the exclusive domain of climbing and alpine packs. Indigo daypacks, computer packs and shoulder bags all share distinctive lines, superb organization and the best materials available. Specifications Juan DayPack: Volume: 1100 Cubic Inches, 18 Liters Key Features: Expando Accessory Pocket. Interior mesh Accessory Pocket. Webbing Waist Belt. 3D Mesh Back Panel. Hydration Pocket and port.