Stay hydrated at the gym or office and while you're traveling, camping, biking or hiking; it fits inside handbags and most bike and car cup holders. Both reusable cup are constructed with a wider opening to make them easier to fill up, clean out and drink from; you can also easily add ice cubes, flavor packets and more. Ideal for indoor and outdoor use, it keep drinks iced for up to 24 hours and hot for up to 12; fill them with water, coffee or tea to quench your thirst.