The FuelBelt Helium Stretch Belt provides a sleek and lightweight carrying system that wont get in the way of your next PR. The unisex fit is perfect for any runner to wear comfortably. Micro race locks provide a quick and easy to attach your race bib without ever using pins. Unisex fit. Made with Helium Hex airflow fabric for breathability. 360° reflectivity provides enhanced visibility. Water resistant micro storage pocket. Adjustable custom fit with quick closure buckle.