No matter how fast or far you're running, this vest is built to keep you at the top of your game. Designed to be 20% lighter and more breathable than the Krar and Howe Vests, the Pinnacle series fits like a second-skin and adds two new kangaroo pockets to the collection of smart storage spaces. Designed to keep you moving in total comfort, this vest is lightweight, breathable and features tapered back panels to keep the moisture out. Its new enhanced shape boasts a slightly longer back for efficient, dispersed capacity. With just the right chafe-free fit and form, it's the perfect race day vest! Thoughtful storage is always in reach including two new Kangaroo pockets allowing one side entry access point and a vertical pocket for larger items like trekking poles. Two water-resistant pockets are included on the chest for phone and a pill pocket complete with whistle. Side pockets allow for easy access to larger items and smaller things like keys and nutrition. | Nathan Sports Pinnacle 4 Liter Hydration Race Vest