This is a skin of Toa Matau Metru from LEGO's discontinued theme, Bionicle

Alternate Noble Kanohi Mahiki: 

Matau was a boisterous and quick-witted Le-Matoran Test Driver native to Metru Nui who became the Toa Metru of Air, and briefly the Toa Hordika of Air. He later became one of theTuraga of Mata Nui along with the other Toa Metru, and was one of the Turaga of Metru Nui before Teridax's reign began.