What Our Gearhead(R) Experts Are Saying: "This is the size I grab for workdays-it fits cupholders, stays cold forever, and the clear lid makes it easy to keep an eye on how much I've actually been drinking."When long days call for steady hydration, the Travel Tumbler makes it easy to drink more without constant refills. We use it at desks, in the car, and around camp-anywhere cold drinks need to stay cold and close at hand. The ergonomic handle keeps it comfortable to carry, while the tapered base slides easily into most cupholders. Made by Hydro Flask, the Travel Tumbler features durable stainless steel construction and TempShield double-wall vacuum insulation to lock in cold temperatures for hours. The clear Press-In Straw Lid is leak-resistant and splash-resistant, letting us see our drink at a glance while keeping spills in check. A flexible straw allows easy sipping from any angle, making this tumbler a reliable everyday companion.