Salomon's extensive experience with adventure sports can be seen in the structure and detail of this running pack. A snug fit together with great detail work towards your success! - Front bottle pockets, with two 500 ml soft flasks included - Zipper pockets on top of bottle pockets, for gel, keys etc. - Sensifit system: stretchy materials and light bungee cords keep the pack in place - Main compartment with a sleeve for a hydration bag, max. size 1.5 liters - The pack is equipped with a safety whistle, mandatory in many trail running events - The rear has a pocket with side entry - Dedicated trash pocket - Stretch pocket on the top - Pole holder Unisex sizing. Choose the size according to your chest circumference: - 80-85 cm: XXS - 85-91 cm: XS - 91-97 cm: S - 97-103 cm: M - 103-109 cm: L - 109-118 cm: XL