Salomon S/LAB Ultra 10 Backpack Designed to surpass even the highest product performance standards in ultra running, S/LAB ULTRA 10 is so lightweight and comfortable you'll forget it's there. Inspired and created by François d'Haene, it's Salomon's lightest ULTRA-specific vest. Built to feel like an extension of yourself, the S/LAB Ultra 10 is designed with a seamless, precise fit thanks to the lightweight materials. The running vest has a Sensifit construction, which uses stretchy, breathable fabrics for an optimised fit and feel, providing you with the best possible experience. The fabrics are soft to the touch with elasticated piping that covers the contours of the hydration vest, providing premium comfort and finish. Mesh materials are used to ensure airflow is efficient, in order to keep you cool and comfortable on your next session, whilst the stretchy properties provide you with the perfect fit and feel. Allowing you to make adjustments with ease, the running ve