Sweatshirt Navy Protex - cotton, designed to be worn under the Pyrovatex outer garments WW2517 to provide E3 molten metal splash protection and extra thermal insulation. Protection against heat and flame û exposure to limited flame spread, convective heat and radiant heat EN ISO 11612 performance levels A1, B1, C1, Additional PPE should be worn to protect the body, head, face, hands and feet. The garment is designed for use as a base layer and should be worn in combination with a coverall or two piece suit complying with EN ISO 11612