The HYDROBREW 500ml blue double wall insulated tumbler blends a bold, vibrant color with exceptional drink‑retention performance. Made from robust food‑grade stainless steel, it is completely free from BPA and other harmful substances, ensuring safety with every sip. The vacuum insulation system keeps hot drinks warm and cold drinks chilled for hours, while preventing any condensation on the outside. Its leak‑proof silicone‑sealed lid ensures portability without mess, and the wide mouth allows for effortless cleaning and easy addition of ice cubes or fruit slices. Perfect for both indoor and outdoor use, this tumbler is lightweight yet sturdy, making it an ideal daily companion for work, school, sports, and travel. Being reusable, it also supports a sustainable lifestyle by reducing waste. double wall insulated, blue water bottle, 500ml stainless steel, leakproof lid, vacuum insulation, bpa free, condensation free, easy to clean, eco friendly, thermal tumbler, lightweight bottle, durable design, hot drink bottle, cold drink bottle, reusable water bottle, spill proof, travel bottle, everyday hydration, bold color, premium bottle