We have a solution for every diapering query arising! Let's sort out the issues you are facing together!
Firstly, we'll check, are the inserts absorbing?
You can test absorption by putting a few drops of water on the fresh insert.
If it absorbs immediately then you are fine and if water starts beading up, that means the inserts are repelling which could cause leaks. Let me know if they are repelling.
If the inserts are absorbing well, then you might just need more absorption, in that case just add the large insert or switch on to overnight insert to see what happens.
Leaking from legs mainly occurs when there is a gap or loose fitting. We have an interesting article on our blog to get the correct fit: http://blog.lilhelper.ca/the-right-fit-for-your-not-so-little-lil-one/