On the website it says: "self cleaning"

I don't know why that made me laugh.


Seems too cumbersome to me. I've gotten really good at squatting and peeing in less than 10 seconds. I'm all set.
Still, for hiking on a trail it would be nice. I'm going to wait until they come out with an attachable hose that rolls up (retracts) nicely up into my shorts. I think I'll be waiting a long time...