CE Approved Product – PPE – Level 1. 3-layer windproof and waterproof fabric with “Barrier” function. Water-repellent outer layer. Polyurethane lip reading window. Internal microfibre layer for excellent fit and comfort. Intermediate layer composed of the TEKSERIES MEMBRANE (barrier function). PROTECTION: – 100% Windproof Our masks are washable in the following ways: • BY HAND – SOAK IN THE TRAY. (This product is not microwave safe like other products).