The impact of feminism on men has produced both backlash and attempts to reconstruct masculinity. The Australian environmental movement, strongly influenced by countercultural ideas, is a case in which feminist pressure has produced significant attempts at change among men. These are explored through life-history interviews founded on a practice-based theory of gender. Six life histories are traced through three dialectical moments: engagement with hegemonic masculinity; separation focused on an individualized remaking of the self, involving an attempt to undo oedipal masculinization; and a shift toward collective politics. This last and most important step remains tentative.