The OfficialCrate Adult Sippy Cup!
Yep! At first we thought, let's design the perfect adult sippy cup! And don't get us wrong, we did--but it is so much more...
Made of high borosilicate glass, this double-walled, insulated, 12oz cup definitely has some superpowers of its own:
Stronger than normal glass; withstands extreme temperatures (as low as -4°F and as high as 240°); microwaveable, freezable, and dishwasher safe; endures thermal shock; and does not sweat.
Nontoxic silicone lid is leak-proof and easy to clean.