The disposable ones are a game changer for road trips—no more awkward squatting behind the car door. They pack flat in my glovebox and the funnel shape is wide enough that I don't spill a drop, even in a bumpy rest stop. The included TP is a nice bonus for when the porta potty is out of paper.
Matthew Q.★★★★★
I'm usually too stubborn to stop for restrooms on long hikes, but these funnels are so compact and easy to use that I actually don't dread the woods anymore. The disposable design means I just toss it after, which is way cleaner than carrying anything reusable. They really do make standing up to pee
Lily★★★★★
These saved my road trip more than once—the funnel is stiff enough to actually aim with, and the disposable pack means I never dealt with a gross reusable one. Being able to just stand and go at a rest stop instead of hovering over a questionable seat is worth every penny.