Ittis are a trim nappy, and as such, are not as absorbent as other ones.

I rarely got 2 hours of out an itti here, usually it was about an hour and I would have to change it. I got sick of it, so I switched to other nappies that worked better for my heavy wetters.
100% agree with Mel.

I used to boost with a mini booster as well. Worked a treat

With my boy we had a nice stash of NicNaps & Swaddlebees original pockets that were our main stash fillers. He only started leaking through his NicNaps when he had near worn them out lol

I found the force of the wee was the issue, not the nappy with boys.