The Vapur 300ML Collapsible Flask is a durable and convenient water bottle made of plastic. With a screw lock top, this flask is easy to fill and drink from on the go. The collapsible design makes it compact and convenient for storing in a backpack or purse, perfect for camping, hiking, or other outdoor activities. The Vapur brand is known for producing high-quality hydration products, making this flask a reliable choice for staying hydrated while out in nature.