SHK1 HSCM90 SHK 1 Half Shield Anti Fog Scratch w Mechanism Clear VLT: 90% heated_jacket Face shield bracket is compatible 11768.07 Face shield bracket is compatible with Rocky series hard hats Designed to be compatible with Dynamic cap mounted ear muffs Dielectric HDPE material is non conductive Face shield attachment points are universal pattern design tougher European standard EN14052 Anti Fog Treatment – Reduces fog buildup to keep visibility unobstructed The SHK 1 Half Shield is designed to fit seamlessly under the brim of the SHK 1 Vented & Non Vented Helmet Its attachment system moves smoothly over the brim and snaps securely into place