Large Capacity: With a generous 40-ounce capacity, this tumbler is perfect for staying hydrated throughout the day, whether at home, in the office, or on the go. Durable Handle: The built-in handle ensures a comfortable grip, making it easy to carry the tumbler around. The handle is sturdy enough to support the tumbler's weight even when filled. Reusable Straw: Comes with a reusable straw designed for easy sipping. The straw is typically made of durable material.Superior Insulation: Double-wall vacuum insulation keeps beverages at the desired temperature for extended periods. It can keep drinks cold for up to 24 hours and hot for up to 12 hours, depending on the specific model. Leak-Proof Lid: The lid is designed to be leak-proof, making the tumbler suitable for travel. It often features a sliding or flip mechanism for the straw opening, ensuring no spills when not in use.