Large, durable steel Gatorade bottle....just add water to fill line, add pod and create 30 0z of fresh Gatorade! I have tried couple of flavors and they are very good, very similar to bottled Gatorade but better tasting in my opinion. This system is convenient, great for impromptu trips to the gym. I also brought it to work and drink is still ice cold at the end of
the day. I was happy to learn that it is dishwasher safe.