Purchased new used 2 seasons.
Still a pretty stiff boot.
The liner is in good shape and the boot is warm and comfortable. There is a 'Bone' for additional stiffness, it is placed in the tongue of the boot. I never really noticed too much of a difference.
There are also spikes on the bottom for added traction when needed.
I needed new boots because these are too big for me.
They need new laces.