The Contigo 2 Leak Proof 20oz Travel Mugs in blue and green are a set of two-piece travel tumblers suitable for adults. These solid-colored mugs made of stainless steel are designed to keep beverages hot or cold for up to 12 hours. With a leak-proof lid, these mugs are perfect for on-the-go use and can be easily cleaned by hand wash only. The vibrant blue color adds a pop of personality to your daily routine while ensuring your drinks stay at the desired temperature.