There is a lot left in the bottom
I used this for gu on bike rides. I can't down a whole one at one time. Prefer a little bit at a time. I was able to put almost 2 gu in bottle for a century ride. Worked how I wanted except the carabiner got stuck on seam at one point and couldn't get it out. There is a lot left in the bottom of the bottle that I had to scoop out with finger. The lid does come apart from the silicone tube to get more out though.
Rating: 4 stars