Incorporating passive radiative cooling structures into personal thermal management technologies could effectively defend humans against intensifying global climate change. We show that large-scale woven metafabrics can provide high emissivity (94.5%) in the atmospheric window and high reflectivity (92.4%) in the solar spectrum because of the hierarchical-morphology design of the randomly dispersed scatterers throughout the metafabric. Through scalable industrial textile manufacturing routes, our metafabrics exhibit desirable mechanical strength, waterproofness, and breathability for commercial clothing while maintaining efficient radiative cooling ability. Practical application tests demonstrated that a human body covered by our metafabric could be cooled ~4.8°C lower than one covered by commercial cotton fabric. The cost-effectiveness and high performance of our metafabrics present substantial advantages for intelligent garments, smart textiles, and passive radiative cooling applications.

将被动辐射冷却结构纳入个人热管理技术可以有效地保护人类免受日益加剧的全球气候变化的影响。我们表明，由于整个超织物中随机分散的散射体的分层形态设计，大规模编织超织物可以在大气窗口中提供高发射率 (94.5%) 和在太阳光谱中提供高反射率 (92.4%)。通过可扩展的工业纺织品制造路线，我们的超织物表现出商业服装所需的机械强度、防水性和透气性，同时保持高效的辐射冷却能力。实际应用测试表明，与商业棉织物覆盖的人体相比，由我们的超织物覆盖的人体可以冷却约 4.8°C。