The Hartford 40 oz. Travel Mug offers generous all-day capacity and is constructed with double wall vacuum insulation to keep your favorite hot drinks hot for 12 hours and cold drinks cold for 24 hours. This reusable mug features a durable powder coated finish, 18/8 steel interior, an ergonomic shape that can fit into most standard car cup holders for easy traveling and its non-slip natural cork base provides extra protection for the mug and surfaces. Its translucent push-on lid features a splash-resistant slider closure and the drinking straw with soft silicone tip enhances your drinking experience while enjoying cold beverages. Stay hydrated and stylish with the Hartford Mug wherever your adventures take you. FDA Compliant and BPA Free. A portion of all proceeds is donated to Shelter to Soldier™, a non-profit organization that rescues dogs to train as service animals for veterans in need.