This 30 oz stainless steel travel mug with straw lid is double walled, vacuum insulated, and comes with an environmentally friendly powder coating for a healthier use. The polished interior doesn't transfer the flavor, it means there's no metallic aftertaste. So you can enjoy your afternoon tea with it in peace. It is suitable for drinking tea, coffee, water, etc and perfect for outdoor adventures, road trips, and sporting event. 7 33/64" H