This analysis of the relationship between gender and nature proposes that masculinity is a technology that shapes both our engagement with the natural world and how we define freedom. As the complexity of our ecosystems becomes more apparent, the line between nature and culture, human and nonhuman, and technology and bodies becomes less distinct. Yet contemporary masculinity studies has generally failed to incorporate this new way of thinking. Drawing on the work of the Frankfurt School, Heidegger, and new materialist theories, Steve Garlick reassesses the relationship between masculinity, nature, and embodiment to advance a new critical theory of masculinity.