All‐Weather Amphibious E‐Textile with Micro/Nano‐Armored Superhydrophobicity for Underwater Motion Sensing

ABSTRACT Superhydrophobic wearable flexible sensors possess significant application potential in detecting human behaviors within amphibious environments. However, under complex wetting conditions, the failure of the superhydrophobic coating poses a critical challenge, as it degrades the internal conductive network and leads to device malfunction. Herein, we present an all‐weather amphibious e‐textile (AWAE) with a micro‐/nano‐armored superhydrophobicity, achieved by integrating an MXene–chitosan conductive layer with a fluorinated dot‐line interwoven mesh coating. Such AWAE exhibits exceptional environmental robustness, retaining superhydrophobicity and stable sensing under mechanical abrasion, chemical corrosion (acid/alkali/salt), extreme temperatures, and UV exposure. Notably, the AWAE enables continuous and accurate monitoring of human joint motions, underwater gestures, and robotic operations even in simulated seawater. This work provides a durable and versatile platform for all‐weather amphibious sensing, with potential applications in healthcare, marine robotics, and smart underwater wearable systems.