Developed with elite athletes and honed for ultra racing, this ultralight running vest features a zippered main compartment, removable trekking pole quiver, included hydration and a stable, bounce-free women&';s fit. Make every second count with two Hydraulics(TM) 500 mL Soft Flasks, three pole carry options and integrated pass-thru and upper pockets that provide quick gear access without vest removal. Features Two Hydraulics 500mL Soft Flasks with WingStay removeable stabilizers included Included removable Duro Dyna Pro Quiver enables on-the-go trekking pole stowage and can be anchored diagonally or vertically Dual lightweight and adjustable elastic vest closure cords Front flask pockets with bounce-free patterning and bungee securement Spacious pass-through lumbar pocket Upper back stash pocket Upper zippered pocket with internal cord to secure bulky items Four stretch drop-in pockets Removable trekking pole dual-carry system enables front carry or lower-back horizontal carry Front harness attachment loop for race-required GPS trackers Tuckaway removable safety whistle Front and rear reflective details for safety Compatible with Hydraulics LS 1.5 L Reservoir (not included) Large, zippered main compartment Dual vertical-zip front pockets