Nathan Pinnacle 4 Hydration Running Vest

The lightweight, highly-breathable Nathan Pinnacle 4 hydration vest offers a chafe-free, apparel-like fit for trail running and racing. It includes two 20 ounce soft flasks and incorporates convenient, easy-to-access storage features.

Moisture-wicking, stretch fabrics hug your body to ensure a movement-mirroring fit and a bounce-free carry. The backpanel is tapered to help create a venting chimney. Dual sliding sternum straps let you dial in fit without getting in the way or causing undue pressure.

The pack's large rear main compartment includes a dedicated internal pocket for the secure carry of the bladder and has a diagonal zipper that offers easy access to the large interior. Rear kangaroo pockets safely stow foldable trekking poles and other items that you may want to quickly put hands on. Up front harness pockets keep all kinds of essentials in easy reach including the two 20 ounce soft flasks that come with the pack. Extended drinking tubes allow you to access water without ever having to remove the flasks from the pockets. Locking caps and bite valves ensure leak-proof performance and a high flow rate. The simple elastic design of the harness pockets makes the flasks easy to remove and put back into the pockets for refills and cleaning at the end of your run. Two other water-resistant pockets are ideal for a phone or a headlamp. A small pill pocket is a perfect stash spot for electrolytes and it also houses a safety whistle which has become a requirement at some sanctioned races.

The Pinnacle 4 running vest is available in your choice of size options which are based on your chest measurement (measured at the sternum). The Xsmall best fits 33"-36" chest sizes, the Small best fits 37"-39" chests, the Medium best fits 40"-42" chests, the Large best fits 43"-45" chests, and the Xlarge best fits 46"-48" chests.