but one of its most underhyped is its Ninja Thirsti water bottle. Designed to go alongside its carbonator system, the Thirsti bottle can keep drinks hot, cold and even carbonated for longer.

Ninja's created a water bottle that's designed with fizzy drinks in mind, and while it's been out for a while as part of its Ninja Thirsti carbonator system, it now comes in a brand new range of ...

Whether you've started the new year keen to up your exercise game or your resolution is just to stay more hydrated, drinking water is a key part of staying healthy. Carrying a bottle of water ...