This water rescue life jacket features premium waterproof 300D Oxford polyester outer layer with high-performance polyethylene foam filling, providing ≥7.5KG buoyancy suitable for rescuers weighing ≤100KG. High-visibility bright orange design with multiple reflective strips ensures visibility in all lighting conditions. Equipped with emergency whistle, specifically designed for flood disaster search and rescue, water emergency response and flood control operations, providing critical safety protection for professional rescue teams and improving rescue efficiency by 97% in emergencies.