This is CUPPOW - our solution for easier drinking from a canning jar. The canning jar already makes an awesome platform for a travel mug: it’s easy to clean, made of heat-resistant glass, cheap, durable, and when sealed it doesn’t leak. The only problem is that with their large openings, canning jars are not great for spill-free sipping while on the move. So we adapted it - made a new lid that lets us drink like a boss from virtually any wide-mouth canning jar.
Awesome! I like this idea a lot.