This survival vest is specially designed for frontline flood control personnel, featuring wear-resistant waterproof Oxford fabric outer layer with EPE high-density polyethylene foam filling, providing ≥50N inherent buoyancy and ≥100N total buoyancy dual protection. Equipped with a ≤5-second quick auto-inflation system to meet sudden flood disaster response needs. The high-visibility orange design with shoulder reflective strips enhances identification in various adverse environments, while the chest rescue whistle facilitates emergency communication. Universal size lightweight design suits extended flood patrol and emergency operations.