Introducing the Nathan Marathon Pack 3.0, designed to support runners during long distances. This running belt features a larger zippered pocket with a divider, accommodating most smartphones for convenience on the go. The contoured minimal design and race-ready features such as side elastic loops and race bib keepers optimize comfort and functionality. The adjustable strap and low-profile buckle closure ensure a secure fit for most sizes. Whether you're training for a marathon or simply enjoy a daily run, this belt is equipped to carry your essentials without hindering your stride. Experience the freedom of movement and convenience with the Nathan Marathon Pack 3.0.