We're working out what we think - we'll add our view here!
Hydro Flask says:
Sometimes you want to sip and savour, and sometimes you’re on-the-go. Our 12 oz (355 ml) Coffee Mug provides the tactile experience of your favourite morning cup with the insulation and dependability of your favourite Hydro Flask. So feel free to slow down and take in the day, or start your multi-tasking early; our Coffee Mug will ensure you start strong.