This boot is great quality and the sizing is good.  But the liner inside the boot bunches when my six year old tries to put it on himself.  Maybe he will eventually figure out how to pull on the liner to put the boot on but for now I have to fix it every time he puts them on.  We are keeping the boot because it is very warm and waterproof.  But I just thought someone should mention the liner problem.  Also, the blue color is a little purple.  It's very unisex but my son does notice it.