Versatile design for running, hiking and cycling This vest is built for multiple outdoor activities, delivering reliable performance whether you are running, hiking or cycling. It provides a single, practical solution for diverse outdoor demands with a lightweight, unobtrusive feel. Optimized hydration access for longdistance use A dedicated water bag slot enables easy and fast access to fluids during extended activities such as hiking or cycling, helping you stay hydrated without slowing you down. Secure, practical storage Features a concealed zipper pocket and antitheft phone storage to keep belongings secure. The antislip fabric helps prevent items from shifting while you move. Comfort and burden reduction Breathable mesh and an adjustable strap design deliver even weight distribution in a lightweight structure, enhancing comfort over long sessions. Key attributes and performance Material: breathable mesh and antislip fabric for secure carry and airflow Function: dedicated water bag slot for rapid hydration, concealed zipper pocket, antitheft phone storage Fit: adjustable straps to accommodate a range of body sizes and activity types Size and weight: lightweight construction designed to minimize fatigue during use Use scenarios Longdistance trail running: rapid hydration access and secure pocket storage while keeping you cool. Day hiking: secure storage for essentials with antitheft phone space and reliable fit. Road or mountain biking: comfortable, balanced weight distribution for sustained performance.