The Calpak Water Bottle Holder is big enough to fit an entire 40-ounce tumbler, handle and all. No matter what behemoth tumbler you’re drawn towards, it’ll fit snugly in this spacious bottle ...

It can fit a water bottle up to 9.84 inches tall and 3.14 inches in diameter, and for the times you’re not carrying a water bottle, the holder folds up to a more compact design.

The water bottle pocket folds out from a hidden compartment in the back and is the perfect size for an average plastic water bottle (16.9 fl oz), so if you love to stomp around town with a giant ...