As its name would suggest, the WX Gravity is a very strong force in the Wiley X lineup, equipped with all of the features you need to maintain control in your pursuits. A slightly angled edge around the shatterproof lenses and textured detail on the rubberized temple arms are subtle and refined design elements that give the WX Gravity a modern flair. With a frame that fits comfortably on most face and head sizes, the included T-docking strap and irritant-blocking removable gasket provide extra security to the fit so your glasses stay right where they need to be. ANSI Z87.1+ HIGH-VELOCITY IMPACT PROTECTION Wiley X ANSI Z87.1+ frames and lenses must withstand the impact of a .25" diameter steel ball. For spectacles the projectile must be traveling 150 fps and for a goggle 250 fps. ANSI Z87.1+ HIGH-MASS IMPACT PROTECTION Wiley X ANSI Z87.1+ frames and lenses must withstand the impact of a 1.1 lb. projectile dropped from a height of 50" to ensure your eyes are protected from unexpected blunt force impacts. PERIPHERAL GLARE CONTROL The high-wrap of our 8 base frames blocks peripheral light. WIND/DUST/DEBRIS CONTROL Removable foam gaskets block out irritants and peripheral light, protecting the eyes and allowing polarized lenses to perform at peak levels. SUPER-TOUGH FRAMES Our frames are constructed from Triloid nylon — the toughest non-metal material available — providing lightweight comfort, outstanding durability and protection from impacts. REMOVABLE FACIAL CAVITY™ SEAL Patented removable foam gaskets block out irritants and peripheral light, protecting the eyes and allowing polarized lenses to perform at peak levels. Specifications: Lens Material: Polycarbonate Bridge Size (mm): 17 Lens Width (mm): 63 Lens Height (mm): 40 Temple Length (mm): 119 Hinge to Hinge (mm): 134 Includes: Removable Facial Cavity Seal Black Zippered Clamshell Case Cleaning Cloth with Wiley X Logo Leash Cord with Rubber Grips T-Peg Elastic Strap Wiley X WX GRAVITY Safety Glasses - Matte Black Frame, Photochromic Smoke Grey Lens CCGRA05