So, I figured it was finally time to upgrade to one of the trendy thirst-quenching tumblers everyone has been obsessing over. Full disclosure: I never really understood the hype behind the massive 40 ...

Both tumblers are also dishwasher safe Lids: The main design difference ... while the Hydro Flask Travel Tumbler only comes in 32-oz or 40-oz sizes. (Other Hydro Flask tumblers, like the All ...