Power of giants bloodline power and armor size

[Arkusech]

Hey guys, I am new in this forum. I am building a paladin lv 17 and I decided to follow the eldritch heritage line of feats in order to gain Strength of the Beast and Power of giants. In power of Giant, the character becomes large. Does my Full plate +5 armor becomes large also for the duration of the spell-like ability or does it remain medium size and breaks? Does the weapon (Falchion +5) also grow large or stays the same?

[j b 200]

Polymorph effects resize equipment if you keep humanoid form. So yes it resizes.