This Mammoth Cave National Park souvenir water bottle by Poppy and Oak is the perfect companion for your outdoor adventures. Made of copper, it is durable and can keep your beverage hot or cold for up to 12 and 48 hours, respectively. The twist lid adds a secure seal, and the 650 ml capacity is ideal for a refreshing drink on the go. This water bottle is not only functional but also stylish, with a nature-inspired theme featuring Mammoth Cave and National Park. It is suitable for adults and comes with care instructions for hand washing only. Whether you're hiking, camping, or just exploring the great outdoors, this water bottle is a must-have for your kit.