[2 pcs water bottles and holders]: Including 2 pcs food-grade 300ml water bottles, save your money and time to buy extra bottles. 2 water bottle holder sport bags let you can bring one more bottle of water to rehydrate your body for taking longer walks, jogging, cycling and other sports [2 compartments]: To store your workout necesseries, one smaller pouch for your small ting, like keys or cards, a main pouch for larger items like smart phone, free your hands during exercise and easy reach when you need [Adjustable Strap Running bag]: Fully adjustable waist belt, fits most of waist and eliminate bounce, slipping during exercise. Running bag size: 30*12cm, running belt adjustable range: 72cm-127cm