According to my experience, this PPE is not up to par. While it falls under the category of Industrial and Scientific PPE the quality is lacking. The single pro is the adjustable feature, but that's not enough to outweigh the con of it not fitting securely or comfortably. i found it to be bulky and cumbersome, which hindered my ability TO properly perform my job duties. Overall, I cannot recommend this product for those seeking reliable Personal Protective Equipment..See full review