Whether we're racking up double-digit miles while training on dusty desert trails or linking ridgelines to see how many peaks we can bag before the sun sets, the Osprey Tempest Velocity 20L Backpack keeps us pushing until our weary feet get us back to the parking lot. The 20-liter capacity packs our trail snacks, hydration, and an extra layer so we can watch the scenery change as we push further from the trailhead. The running-vest-inspired harness and flexible hipbelt ensure that no matter how we move, the pack will stay stable on our back. The breathable AirScape back panel keeps air circulating, and the cinch-top closure allows for quick access to our cargo.