Synergistic Sustained Cooling and Adaptive Moisture Regulation Enabled by Core–Shell Structured Textiles

Abstract Thermal and moisture balance in the body–textile microclimate is critical for human comfort, health management, and prolonged wearability. However, designing a textile system capable of simultaneously achieving sustained cooling and dynamic moisture regulation remains an unaddressed and significant challenge. Herein, a thermal and moisture regulating textile (TMRT) is developed via coaxial electrospinning, featuring a rationally designed core–shell micro/nanofiber structure with a moisture–regulating polymer sheath and a thermal–responsive polymer core. The resulting TMRT exhibits exceptional mid‐infrared (MIR) emissivity (99.82%) and low solar reflectivity (7.71%), an outstanding contact cooling coefficient (0.43 W cm −2 ), and ultralow thermal resistance (0.08 m 2 K W −1 ), enabling ≈ 6.6 °C reduction in skin temperature at 40 °C. Remarkably, the TMRT demonstrates low moisture resistance (2.49 m 2 K W −1 ) and a high water evaporation rate (0.59 g h −1 ). Furthermore, it possesses favorable moisture regulation performance and rapid humidity response, achieving a humidity–sensing resolution of 0.5% relative humidity (RH). The TMRT–based protective clothing displays a comfortable microenvironment for the human body. This work establishes a groundbreaking paradigm for advanced textiles with synergistic thermal and moisture management, addressing critical limitations in conventional protective gear, particularly in mitigating heat and humidity accumulation during prolonged use.