Introducing the versatile Melbourne 1200 ml RCS certified insulated tumbler with straw, a premium option for those who prioritize both functionality and environmental sustainability. This tumbler is ingeniously designed with double-wall air insulation, ensuring your beverages remain hot for up to 2 hours and delightfully cold for up to 4 hours. This feature makes it an essential companion for commutes, workouts, or outdoor adventures. What sets this tumbler apart is its eco-conscious construction; the inner wall is crafted from recycled plastic while the outer wall proudly carries RCS certification for its recycled stainless steel material. These thoughtful design choices not only highlight a commitment to sustainability but also provide a durable and stylish choice for daily use. With its substantial 1200 ml capacity, you can easily maintain your hydration levels throughout the day. The splash-proof dual-vent lid with a nifty twist-lock cap provides easy, spill-free access, while the accompanying food-grade recycled straw enhances your drinking experience. For optimal maintenance, hand washing is recommended. Adding a personal touch to your tumbler is also possible, making it a perfect personalized gift or promotional item. Embrace the future of drinkware with this environmentally-friendly and customizable tumbler, and enjoy every sip in comfort and style.