Experience ultimate comfort and convenience with this lightweight hydration running vest backpack, perfect for all your outdoor adventures. The versatile design features a dedicated water bladder compartment compatible with 500ml hydration systems, plus multiple storage options including side pockets that can hold phones up to 7 inches. The innovative honeycomb mesh material ensures excellent breathability while you're on the move. Measuring 14.2 x 11.8 inches, this vest-style pack includes adjustable chest straps and waist buckles for a customized fit. The thoughtful design incorporates zippered pockets, a convenient top handle, and a large rear compartment for additional gear storage. Available in various colors including gray, blue, green, and black, this water-resistant nylon pack is ideal for running, hiking, cycling, and other outdoor activities. The reflective honeycomb pattern adds visibility during low-light conditions, while the durable smooth-gliding zippers ensure easy access to your essentials. Whether you're trail running or cycling, this hydration vest provides the perfect balance of functionality and comfort for your active lifestyle.