Durable and Reusable: The water bottle is made of PE, PA, food grade PET materials, safe and durable. The inner layer is odor and stain resistant, so the bottles can be used again and again. EASY TO DRINK & FILL - Easy drinking product and quick filling with a secure seal and cap. The wide opening is perfect for filling and cleaning your bottles. Foldable Design: With the included hook and loop, you can put these foldable water bottles on backpacks, duffel bags, etc. They stand when full and put the bottle flat and put it in your pocket when empty. LARGE CAPACITY & TEMPERATURE RESISTANCE - This large capacity soft water bottle is 700ml, which is enough to supplement the water. Can withstand the temperature ranges of water from -45 to 120 . Wide Usage: Lightweight and foldable water bottle is perfect for camping, hiking, cycling, running, jogging, gym training, summer camp travel or other outdoor activities.