Gear 5 ("Gear 5") is a transformation created as a result of Luffy awakening the power of the devil fruit Gomu Gomu no Mi.

It was first seen during Luffy's third battle with Kaidou on the Skull Dome rooftop.

The awakening of the Gomu Gomu no Mi, usually called Hito Hito no Mi

It gives the user's rubber-like body increased power and freedom, limited only by the user's imagination

In gear 5, Luffy's heartbeat takes on a musical rhythm which has been relate by Zunesha as the "Drums of Liberation

His hair and clothes turn white and his eyes glow with white ring-like pupils

white clouds float around his neck. It is like clouds of steam that accompany him in Gear Fourth.

it consumes plenty of energy to maintain and use

it consumes plenty of energy to maintain and use