Get sustainable hydration on the go with the Flip Straw Tumbler.  Ready for the gym, class time or commutes, it slips right into your bag or car cupholder. With a wide opening and built-in straw, the Flip Straw lid lets you hydrate faster. Just flip up to drink, then snap shut. Thanks to double-wall vacuum insulation, your drink stays cold for hours. Grab the easy-carry handle and you’re set for a well-hydrated day.