THIS BREATHABLE RACERBACK HYDRATION VEST WITH HONEYCOMB™ MESH CONSTRUCTION SPORTS A LIGHT YET DURABLE RIP-STOP PACK HOUSING A CUSTOM 600 ML RESERVOIR.  VEST FRONT FEATURES: Magnetic hydration tube-clip, which can be moved, to keep drink tube in place Two zipper secured expandable mesh pockets Adjusts for both waist and height, with custom low profile quick-release BACK VEST FEATURES: Lengthy rear zippered pocket with room for shell, nutrition, and more Includes 600mL Soft-Tech™ Reservoir with custom 18" drink-tube in expandable reservoir internal pocket Drink tube pass through Amphipod PureRun UltraLight 600 mL Hydration Vest in HydroPop