Question on force (Diablo 2)

Fsem of gratuti! I got the Hyde necro samanera,where, due to not put anything,i.e. leave the base 15. And to wear the armor throws charmy force dress up and we will be happy! As soon as charmy remove all the armor clad becomes active.QUESTION!! I'm doing something wrong or it doesn't work and force necessary to customize armor? If I was a novice.