Drinking enough water has many benefits. Kristina Todini, RDN, a registered dietitian and nutritionist, says that staying hydrated is key to mental and physical performance. Although the exact amount you should drink daily varies based on your activity level and other factors, it's safe to say that adding another glass or two to your daily routine is a good idea for most people.
To help you stay hydrated, especially during busy days, we recommend investing in a functional water bottle that you can bring with you to the gym and the office. Stainless steel water bottles keep your water cold for hours, are better for the environment than plastic, and aren’t prone to breaking like glass water bottles can be.
To find the best stainless steel water bottles on the market, we looked for well-insulated options that are leakproof, portable, and durable. We then tested 25 top products.