Helium 20 Eyewear Clear AF/PC - White Frame Ultra-Light Eyewear ErgoFit Temples fit the contour of your head for an amazingly comfortable, secure, non slip fit even with ear muffs and headgear Class 1 Optics Impact Rating: Ansi Z87.1-2010(+) .25 CAL Projectile @ 150ft/sec CE EN -166 EU Compliant Distortion-free wraparound lens, offers superior peripheral vision and protection SuperCoat long