This industrial-grade zipper was just what I needed for my job in construction safety. Based on my observations, the fluorescent yellow color is highly visible, even from a distance, which is crucial for preventing accidents on site. The polyester material is also durable and long-lasting. however, the zipper can sometimes become stuck if not properly aligned. Overall, this is a great product for anyone in need of reliable personal protective equipment in the industrial and scientific field. .See full review