Tervis stainless steel 30oz tumblers are durable, ergonomic, and triple insulated so you can take them with you anywhere. The perfect travel tumblers - for coffee at home or work - are dishwasher safe for easy cleanup, and have a quiet, nonslip base to keep them in place. Take your favorite hot or cold beverage along, so youre never without coffee, water, iced tea, lemonade or your other favorite drink(s)