Here's what makes the Runderful water bottle special: Hydration on the Go: With a generous 600ml capacity, you can carry enough water to stay refreshed during your walk. Easy Drinking: The convenient twist-on lid lets you access your water quickly and easily, so you can stay focused on your walk. Built to Last: Crafted from Eastman Tritan™, this bottle is durable and BPA-free, making it safe for long walks and everyday use. Walk mindfully and hydrate consciously.