This big 17oz bottle collapses down to just a few inches. Small to carry, then big when you need it. Perfect for traveling, camping, hiking, climbing, cycling, and sports. Stay hydrated when driving, at work, outdoor, or when doing chores around your home. These foldable portable water bottles are made of rugged modern silicone material that is healthy and safe. Safe for kids and everyone in your home. Use for everything from iced tea to steaming coffee. You no longer need plastic water bottles of varies sizes plus coffee mugs. Use this single collapsible wonder to enjoy all your favorite drinks. It comes out clean and pristine, fresh and ready to use time after time. The collapsible sip spout provides more fluid from every sip and is easier to clean than a straw.