Backpack for Running Vest Color Gray Size B Material Nylon Weight about 260g Compact hydration vest designed for active users who need reliable, hands water supply and organized storage during exercise. Lightweight construction and adjustable fit make this vest suitable for men, girls, teens, and athletes who want comfortable, balanced hydration on the move. Key benefits Reliable hydration on the go: Includes one Hydration Bladder for Sport to keep fluids accessible without stopping. Organized storage: Large capacity options with multiple pockets for small essentials such as keys, phone, energy gels, and tools. Comfortable fit for extended use: Adjustable straps and secure buckles allow ergonomic adaptation to body shape while reducing bounce. Breathable and durable: 3D ventilation and strength nylon provide airflow and long lasting wear while keeping overall weight low at about 260g. Durable drinking system: Reinforced water outlet and built in fixing strap improve durability and secure hose routing for outdoor activities. Versatile use: Designed to support a range of activities so users can rely on a single vest for many sports. Features Multi pocket design for organized storage and quick access fit with adjustable shoulder and chest straps and secure buckles 3D ventilation panels to improve airflow and wearer comfort strength nylon for abrasion resistance and light weight Reinforced water outlet and hose fastening for secure hydration delivery Built in fixing strap to stabilize the bladder during movement Specifications Color Gray Size B (marked as shown) Material Nylon Weight about 260g Packaging size about 40 x 30 cm 15.75 x 11.81 inch Packing list 1 Hydration Bladder for Sport Practical use scenarios Trail running: Carry hydration and small items during long runs while maintaining a secure, low bounce fit. Road cycling: Use the vest for easy access to fluids and essentials on rides where bike frame storage is limited. Day hikes and climbing: Keep hydration and quick access items organized and stable during variable terrain. Additional notes Color may vary slightly from images due to lighting and screen settings. Please allow 1 to 2 cm difference due to manual measurement. This hydration vest focuses on practical function, comfort, and durability to support a wide range of outdoor activities.