SuperATV Polaris Heim to Mega Ball Joint Adapters Red Gear At a pre determined temperature the Forks At a pre determined temperature the copper coating under the pad puck melts and fused the puck and plate together Expanded eyeport for easy fit even with larger framed glasses Integrated pockets with cushioning foam provide relief for temple arms Widened nose bridge foam aids in fit while reducing fogging Removable nose guard deflects roost and debris Anti fog coated polycarbonate lens for clear vision Triple layer moisture managing face foam soaks up sweat 45mm Ultra wide silicon coated strap ensures a secure fit 9 retention points secure lens in frame All adult FMF goggles share the same lens and tear offs These heim adapters are built big Speaking of material