• • The dual-network SMP achieves a shape memory transition temperature tuned to the human thermal comfort range, enabling actuation at body-relevant temperatures, a critical improvement over prior SMPs that required >55°C (e.g., Feng et al.).
• • Twisted-coiled processing of SMP fibers yields a warp reversible strain of 17.5%, a significant amplitude for fabric actuation, allowing substantial structural changes for adaptive thermal management.
• • At high temperatures, the fabric contracts, increasing air permeability to 1546 mm/s and thermal conductivity to 0.0518 W/(m·K), facilitating heat dissipation; at low temperatures, it elongates, reducing air permeability to 1322 mm/s and thermal conductivity to 0.0426 W/(m·K), enhancing insulation.
• • The fabric reduces skin microenvironment temperature by 1.5 °C compared to commercial wool, and offers an energy savings potential of 222.58 MJ/m² per year in Beijing, underscoring its economic and environmental impact for zero-carbon thermoregulation.