The back is made of breathable and padded mesh, sweat-absorbent and comfortable. Reflective strips can enhance visibility and ensure your safety at night or early morning. Designed with a wide back support belt, and breathable mesh fabric. Help you keep active, prevent injury, boost performance during activities by reducing the pulling stress of the lower back, and protect your waist effectively. Lightweight: Minimize the bulk and weight during the whole running time. Extra Large Capacity: Enough room for holding your smartphones, water bottles, keys, money, cards, treats, poop bags, and other essentials. Dual Bungees for Maximum Comfort This intelligently designed leash features a durable shock-absorbing dual bungee that prevents hard pulling and minimizes injury risk to both you and your pets. The sturdy, stretchy design gives your dog added freedom to explore. Dual Handles for Total Control Conveniently placed handles give you excellent control over your dog. Easily guide your faithful companion on your runs through the park with the first built-in handle. Then switch to the amazing traffic handle when you need tighter control of your pet. Technical Specifications: Waist Bag Size: 15.75"" * 6.3"" Waist Belt Size: 35.43"" - 51.18"" Dog Leash: 51.18"" - 70.86"" Package Includes: Fanny Pack x1 Double Dog Leash x1 Poop Bag x1