Frame Crossblade Tri-Tech Fit™ provides a snug fit DedBolt™ lens lock - frame lock ensures quick lens replacement anti-scratch coating - special coating protects against scratches anti-fog coating ClearZone™ - special coating prevents fogging 100% UVA/UVB safety - full protection from ultraviolet radiation meets U.S. standards - U.S. Federal OSHA, ANSI Z87.1-2015, CE EN 166 and U.S. MIL-PRF-32432A ESSOPTICS™ technology - prevents image distortion and helps maintain visual acuity The ballistic eyewear set Crossblade Spin Camo Bone is a complete kit for eye protection outdoors and indoors. It is suitable for military personnel, athletes, hunters, or those who occasionally enjoy shooting at the range and want to have their own comfortable eyewear. The protective ESS Cross series has been on the market for years and continues to be complemented by new models of eyewear and accessories. The Crossblade line incorporates all the strengths of previous models and is enhanced with progressive technological solutions. It is based on the new refined Crossblade Tri-Tech Fit™ frame, while the lenses remain compatible with Crossbow, Crosshair, and Suppressor frame types. The Crossblade Spin Camo Bone kit includes: ESS sticker soft cleaning cloth instruction booklet elastic neck strap Frame Crossblade Spin Camo Bone, clear standard lens Clear, smoke gray standard lens Smoke Gray, high-contrast standard bronze lens Hi-Def Copper