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 new lids that lets us drink like a boss from virtually any wide or regular mouth canning jar. It's a simple eco-friendly alternative to poor-performing and messy disposable hot cups, and over-built and expensive travel mugs. We're proud to have developed a product that we look forward to using every day. That means it works great, it's super durable, it's made in the USA, it's phthalate and BPA free, it's recyclable, and it doesn't break the bank.