UA Storm technology delivers an element-battling, highly water-repellent finish|Expandable UA Speedpocket on back is water-resistant & keeps your phone secure, with no bouncing|Adjustable elastic webbing with buckle closure for a secure, custom fit|Secure, zip front compartment to store your keys, ID, or gels-even fits up to an iPhone 12 Pro Max|Reflective details for added visibility on low-light runs|Uses a fluorine-free water repellent treatment