Petroleum-derived synthetics might be very efficient in keeping people dry, but reliance on non-renewable textiles for outdoor leisure is unsustainable. Synthetic Adventures explores the cultural drivers for the growth of outdoor clothing consumption in the face of complex environmental problems. Observing designers and consumers, Synthetic Adventures asks whether normative understandings of weather perpetuate unsustainability in the apparel industry. A focus on weatherproof apparel highlights what decarbonising clothing cultures means in practice and offers pathways to understanding cultural and social barriers to addressing the climate challenge.