I'm looking to find the ultimate anti-diaper-leak plastic pants. The standard ones don't guarantee this. So I'm looking for something like a cat suit that
A. Covers the whole body including the feet (like onesies) or at least from the waist down.
B. Is water proof.
This way even if the diaper leaks it will not leak out of this outfit.
Also, better it should be under $50.
Please point me in the right direction.