We love a big cup as much as the next person, but air up® is more than just a "receptacle"—it’s a hydration system. While a Stanley tumbler is designed to keep drinks cold, air up® is a hydration system that changes how your water tastes—without adding anything to it. Instead of just carrying more water, we give you a reason to actually drink it. Plus, our bottles and tumblers are designed for scent-based flavour, giving you a sensory experience you won't get from a standard tumbler.