Small square shaped reusable water bottle *Easy to slip in a bag, perfectly airtight and light, Monbento have chosen to always see the bottle half full with the MB Positive S to-go bottle. *This little reusable and BPA-free plastic bottle will quench your thirst throughout the day or while you are at the gym and will seduce you thanks to its convenient and ecological aspect. *Perfect for light hydration when you're just out for a little while, or for kids.