Thermo flasks have been, and probably always will be, a part of our lives. They are just that useful and it's that simple!... Printed with your logo, they'll make an excellent promotional product for the same reason. And when/where are they used ? At the kids sports on weekends,.. on a family road trip, on that romantic camping trip... sipping hot chocolate as the rain falls.. in the snow... those are the times .. those unforgettable times.. and if it's your logo on that Thermo flask.. they won't be forgetting you in a hurry either.