The Insulated  Stainless steal Canteen by Corkcicle is made for modern lifestyles. Removing the necessity for plastic, the sustainable beverage container is eco-friendly & a chic accessory for the beach, cottage, patio. Great for hot & cold drinks. Triple insulated, the canteens will keep cold beverages cold for up to 25 hours and hot beverages hot for up to 12 hours. The leak-proof screw-on cap prevents air and liquid from escaping.