This bendable Accordion Water Bottle stretches to a huge 28 oz. capacity and compresses back down to a manageable size after use. It is a great choice for your elementary Track and Field Day, school fundraiser, or your school store. The polyethylene bottle comes with a screw-on polypropylene lid and rubber drink-through push/pull spout. NOTE: Make sure the lid is off or spout is open when expanding or collapsing bottle.