Michaleena_Art

this is my canon idea of what henry answered here

How ?

More precisely, is it fixed on the thigh part, if yes how, is it flexible in a way and how much can you bend your knees ? Could you flex all the leg like normal or does it restrain movement ?

Hi !!

It depends if your leg armor is fully articulated or floating.

Articulated means that the cuisse and the poleyn (knee) are linked together with rivets, the articulation comes from different interlocked iron layers, it looks like this :

And floating means that the cuisse and the knee have individual attachment, that can still be linked with leather straps :

Since floating is less restrained, it's probably more flexible, but if the articulated is well crafted it also allows plenty of room to move :)

This usually is how flexible articulated can be /!\ without chainmail or padded pants

(all of this are references for european ~14th 15th medieval armors , they change a lot depending on where and when)