Navigate your next day hike with the Gregory Arrio 20 L Backpack. This technical daypack boasts a CloudControl hipbelt that flexes naturally while providing stable support. The VaporSpan backpanel and breathable shoulder harness ensure ventilation and comfort throughout your journey. The bag even includes a built-in safety whistle and hydration hose routing clip. Keep your essentials within reach with a top zippered pocket and dual stretch mesh side pockets for large water bottles. The backpack is also equipped with an internal hydration sleeve compatible with Gregory Hydro reservoirs (not included).