Designed with Raptor Flex 4-Way Stretch fabric and a CONTACT Air Mesh Plus harness, this vest offers exceptional stretchiness, lightness, and breathability, ensuring optimal performance during intense runs.Equipped with two Montane UltraFlasks, this vest keeps you hydrated on the go. The front of the vest features two zippered compartments for conveniently stashing snacks and energy gels. At the back, you'll find a zippered pocket for securely storing valuables, along with a stretchy pocket for quick access to an extra layer like a waterproof jacket. If you need to bring along poles, the vest includes built-in holders, allowing you to wear them instead of carrying them during flatter sections of the trail ... More info