In a world where fitness gear becomes more insanely versatile by the day, Mobot dares to ask the question, "Why shouldn't a water bottle also be a foam roller?" Enter this beautiful thing — a 27 oz, recycled stainless steel water bottle that's also, you get the picture. It's single-walled, meaning that if you fill it up with icy water, you'll be able to feel the cold soothing your muscles through the high-density EVA foam. The brand refers to this concept as "Mobot & chill," which we think is hilarious.