Ultra Train is a light, minimalist backpack with a volume of 22 liters. The Dry Back system promotes good airflow and breathability, which reduces the temperature on the back and reduces sweating. The Twin Compression System ensures a tight fit and stabilizes the load, while the lower compression straps allow for quick compression. Split shoulder straps allow great freedom of movement. With secure zip pocket for valuables, side pockets and quick access pockets, trekking pole pocket and reflective sublimation print for better visibility at early starts and late finishes.