The package included one hydration flask (150ml). Recommended temperature range 0-50℃ Made of food grade TPU (thermoplastic polyurethane) material and BPF-free, safe and lightweight, easy cleaning A foldable running water bottle is easy to carry whenever empty or full. It is ideal for a hydration running vest and hydration waist belt The soft flask can be used by adults and children, men and women Soft collapsible flask can be widely used in cycling marathons running hiking, and any other outdoor activities Easy To Fill And Drink With a wide opening, it's more convenient to fill water into the water bottle. When you drink water, just nibble or pinch the bite valve and the water can be easily discharged Wide Use: The handheld sports gel flask is designed for outdoor sports and daily life use. Perfect for hydration vest, marathon, jogging, running, hiking, cycling, climbing, backpacking, traveling, trekking, and camping