Package included: 1pcs soft flask (250ml/8oz) Material: made of food grade TPU (thermoplastic polyurethane) material and BPF-free, safe and lightweight, super soft and durable. The soft gel flask is recommended for water between 0-60℃, do not put it in freezer compartment of the refrigerator. Foldable running water bottle is easy to carry whenever empty or full. The foldable water bottle can be folded into a compact size, very convenient to put into backpack pocket. The soft flask has a durable bite valve with dust cover, when you drink water, just nibble or pinch the bite valve and the water can be easily discharged. Wide use: perfect for hydration vest, marathon, jogging, running, hiking, cycling, climbing and any other outdoor activities. J.CARP 250ml Soft Flask Running Water Bottles, TPU Foldable Running Hydration Flask for Hydration Pack Cycling Hiking Climbing Outdoors Motorbike