I've taken these on two camping trips in the past year and recently ordered more as my 24-pack is running low. Works very well. When I was shopping for them, I noticed they had a higher capacity than some of the similar competing products, so even if you have a lot of pee, it will have plenty of space.Would also be a nice alternative to a urinal bottle for somebody unable to get out of bed easily. I wish I'd had these when I was recovering from my broken ankle. Easier for the caretaker because they can just throw it out instead of emptying it and rinsing it out and smelling pee. Easier for the person with limited mobility because they don't have to smell their own pee when they go to use a partly-full bottle.