This fabric is a polyester cotton twill fabric. Fluorescent orange fabric is usually made by interweaving high-end FDY or DTY filament with combed pure cotton sand thread. Through a specific twill structure, the polyester float on the fabric surface is much more than cotton, while the cotton float is concentrated on the back, forming a “polyester cotton” effect. This structure makes the front of the fabric easy to dye bright colors and has a full luster, while the back has the comfort and durability of high-strength cotton. Suitable for use in environmental sanitation and firefighting uniforms.