Secure, quickaccess storage The elastic pocket on the shoulder strap holds a cell phone and a water bottle, keeping them within easy reach during activity. Spacious and organized main compartment The large main pocket stores a phone, keys, and other small items for outdoor activities, providing convenient organization and retrieval. Safety and visibility The backpack features reflective design elements to enhance visibility in lowlight conditions, supporting safer use outside. Versatility for multiple activities Suitable for jogging, running, marathon training, hiking, mountaineering, cycling, and backpacking. Use scenarios Morning or evening jog on dim streets: keep your phone secure and accessible in the shoulderstrap pocket while the reflective elements improve visibility. Day hike or trail run: use the large main pocket to carry a phone, keys, and essential small items for quick access on the move. Cycling commute or weekend backpacking: rely on the shoulderstrap pocket for lightweight, hands access to core items, with safety features aiding visibility.