This flannel rescue warming blanket features a 350gsm thickened design, specifically developed for temporary shelter use. The unique flannel fabric provides a thermal retention rate of 96%, offering effective warmth even in environments as cold as -15°C. Each blanket weighs under 1.6kg for easy mass distribution. Successfully deployed in disaster relief operations across 42 countries, with an average of 200 blankets per temporary shelter and monthly supply exceeding 50,000 units, it has become a core resource in disaster area relief work.