Having bought an XL minki yoyo to try for my 3.5yr old bedwetting boy, it was absolutely massive and I had to then order a size L. (Which is the same size DD 14mths wears)
BUT it really seems to gape at the sides. We've used it once with a little leakage, but then he leaks out of every pull-up I've ever tried - motherease bedwetters and various sposie pull-ups.
Is the yo-yo quite bombproof for other people? Is it back to the drawing board??