My apologies if this has been asked and answered, but I couldn't find a good thread on it.
I've recently been reading up on boots and boot fitting in anticipation of buying my first pair. One thing I came across in another thread was the notion that for a full and half size boot (say, a 28, and a 28.5) there is no difference in the shell OR the liner size. (I think everyone agrees on the shell part.)
Is there a definitive source on that for the liners? And if that's true, is there ANY difference between full and half sizes?