The Salomon S/Lab product line forms the cutting edge of the manufacturer's range. This 10-liter running backpack boasts an extraordinary fit due to its vest-like carrying system. - Includes two 0.5L S/Lab soft flasks - Breathable, mesh-like fabrics against the skin - SensiFit: a snug fit created with flexible materials - Two zippered front pockets - Two bottle pockets - Two side pockets - Two stretch side pockets - Stretch back pocket - Loops for attaching poles, additionally, the backpack is compatible with the separately purchased Custom Quiver pole bag - Safety whistle