Tingley Mvo148 safetyflex specialty PVC on polyester overall combines tough protection and comfortable fit, offering flame resistance, mildew resistance, 100 percent liquid proof protection and chemical resistance to industrial chemicals, acids and caustics. The heavy exterior coating of PVC gives excellent permeation performance. This safety-green overall is engineered for the toughest job requirements, such as chemical environments, yet has a soft, supple feel for all day comfort. Additional features include therm-o-rad seams, plain front, and non-conductive, non-corrosive snaps and buckles.