Product Details     Style: NS40200 For hydration on the run, the Nathan Pinnacle 4L Race Vest is lightweight and designed for long runs. It carries two 20oz HydraPak soft flasks with ExoSpine™ and a long hose and mouthpiece for easy drinking. The Pinnacle series feels more like a second skin with tapered back panels for a chimney wicking effect that is designed to wick moisture. It has a 4L storage capacity with 12 exterior pockets that help distribute your gear evenly for all your long distance needs. FEATURES 4L Capacity Includes two HydraPak 20oz flasks ExoSpine™ long hose and mouthpiece Compression fit with stretch materials gives ensures next-to-skin comfort Adjustable chest straps ensure a comfortable fit Tapered back panel improves moisture-wicking and breathability New shape has a longer back to help distribute gear and weight Two water-resistant pockets on the chest Kangaroo pockets for essentials like trekking poles Reflective details make you visisble in low light conditions Nathan Pinnacle 4L Race Vest