The one who looked like a son of man had white hair on his head, very white, pure white, like snow (cf. Daniel 7:9). The whiteness speaks of age and thus of wisdom (Job 12:12). The word like
is used to communicate that the white
is beyond the whiteness of wool or of snow.
14 The hairs of his head were white, like white wool, like snow. His eyes were like a flame of fire,