MAXtremer AR coating Through the advanced multi-layer anti-reflection optical technology design and vacuum deposition of ions, MAXtremer AR coating features improved transmittance rate, anti-static layer and enhanced durability. Dust free Developed through high-vacuum deposition, this coating blocks oil marks, fingerprints and water adherence on the surface of the lenses resulting in a clean and clear vision. The lenses can easily be cared for in outdoor settings where it can especially get dirty.