To design a better water bottle, we need to consider the following factors: 1. Usability: The water bottle should be easy to use and transport. It should be lightweight and easy to carry around. The lid should be easy to open and close, and the bottle should be easy to clean. 2. Durability: The water bottle should be made of high-quality materials that are durable and long-lasting. It should be able to withstand daily wear and tear, and should not leak or break easily. 3. Sustainability: The water bottle should be environmentally friendly. It should be made of materials that are recyclable, and should be designed to minimize waste. 4. Design: The water bottle should be visually appealing and aesthetically pleasing. It should be available in a range of colors and designs to suit different tastes. As a product manager, I would conduct market research to understand the needs and preferences of our target audience. I would also work with designers and engineers to create a prototype that meets the criteria outlined above. Once we have a prototype, we would conduct user testing to gather feedback and make any necessary adjustments. Finally, we would launch the product and monitor its performance to ensure that it meets the needs of our customers.