"Why not make a polarized glass in an XL?" you asked us. Well, it took a little extra material, but hey, we gotcha covered. The Kazbek XL Polarized takes all the benefits of glare blocking qualities of our standard Kazbek Polarized glasses and "expands" them for a wider, more comfortable fit. Protect your eyes and define your style- even if it takes a little more surface area. Compliant with ANSI Z87.1-2010 2003 standards and meets U.S. Military Eyewear Ballistic Impact Resistance Requirements - MIL-PRF-31013 clause 18.104.22.168, MIL-V-43511 clause 3.5.10.