●Country of Origin: China ●Size: Height: Approx. 18.1 inches (46 cm), Width: Approx. 9.4 inches (24 cm), Shoulder Width: Approx. 18.1 - 31.5 inches (46 - 80 cm), Adjustable. *The sizes are the actual size of our store. Actual product and manufacturers indicated size may differ slightly from the actual product. Please be aware of ●Weight: Approx. 17.6 oz (500 ●Material: Nylon ●Slim design fits perfectly to your body during competition. Introducing a large capacity running backpack that is great for sports activities such as running and trail runs ●(Vest type with excellent fit) ●The lightweight fabric and smart form like a vest, so you can carry essential items such as drinks and smartphones without affecting the competition