All the waste is contained so you have no chance of soiling yourself. The transport bag is a silver mylar zip top bag. It is made really strong and it is odor proof. Their web site says no bucket no odor no mess. I say it is amazing. You get lots of toilet paper and a very large wet wipe for cleaning up when you are done. I think they have thought of every thing. You need to do yourself a favor and check these out. www.biffybag.com My husband takes one along when he goes biking and I keep one in the glove box just in case.Oh they are also land fill approved so you can toss them in the trash when done.