Steffi Lynn is a talented US-based artist known for her colourful, quirky, and playful art. The 500ml Original Bottle features her unique design and is made with triple-layered, vacuum-insulated high-grade stainless steel. Using Therma-Swell Technology, it keeps drinks hot for 18 hours and cold for 36. BPA/BPS-free and reusable, it's perfect for reducing single-use plastics. With superior performance and stylish designs, it’s ideal for the gym, commutes, or travels.