Enjoy your favorite drinks on the go! 20 oz. Stainless Steel Travel Mugs are made of durable and rust-resistant stainless steel that can withstand daily use and travel. They have a double wall vacuum insulated design that can keep your drinks hot for up to approximately 4 hours and cold for up to approximately 6 hours. Come with a transparent plastic lid that has a curvy straw hole for easy sipping. Perfect for commuting, camping, hiking, picnicking, or any other outdoor activities. Imprint drinkware only can be handwash. Rush 3 days available with rush charge upon request. BPA FREE, FDA certified