From Nathan: "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."
The Pinnacle 12L is a great all purpose hydration vest. It has a ton of storage capacity with primarily velcro closures and the fabric is super soft and comfortable during all day wear. Although it lacks a cinching feature, it doesn't bounce much.