The Salewa Ultra Train 18L is a lightweight, minimalist pack with an 18-litre capacity made of 70-denier ripstop nylon. The Dry Back system with EVA back panel with 3D channel ventilation promote good air flow and breathability to lower the temperature at the back and reduce sweating. The Twin Compression System ensures a close carry and stabilises the load, while the two-in-one lower compression straps allow you to quickly cinch in the compression. And the split shoulder straps allow great freedom of movement. With a secure zip pocket for your valuables, side pockets and quick-access pockets, a pocket for your trekking poles and a reflective sublimation print for increased visibility during early starts and late finishes. This pack is compatible with the Salewa flask holder and prepped for a hydration system. A lightweight, 18-litre pack for fast-moving mountain hiking and speed hiking. Nylon 70D Ripstop Hydration System Exit. Twin Compression System Split shoulder