humangear Luggage gocup, Clear, Small (4 Oz.)

Great idea, however when you put fluids into it, it feels as if it will collapse in your hand and you have to gingerly hold it. It does do what it is meant to do, however, if you are going to use it as an everyday cup, you might want to invest in something with more of a sturdy feel to it.

The cup has a funny smell and makes me a little not want to use it.It is handy to use since it folds.