This adjustable ergonomic gear is superb! According to my experience in the Industrial and Scientific field it is a fantastic Personal Protective Equipment that can be adjusted to fit comfortably and securely.the four-layered design makes it very durable and reliable. The material used is breathable, which means that it doesn`t become uncomfortable while wearing it for a long period. The only con I found is that it is a bit pricier than other Personal Protective Equipment. THAT said, the cost is worth it if you care about quality and comfort..