Smith Optics Elite Aegis Echo Asian Fit Tactical Glasses Smith Optics Elite Aegis Echo Asian Fit Eye shields: Multicam Frame/Clear/Gray Lenses Superior ballistic impact protection per US MIL-PRF-31013 standard clause 3.5.11 Fast lens exchange with Pivlock Lens Technology, Tapered Lens Technology corrects distortion, Mego Temples and soft nose to hold eye shield in place Anti-fog and scratch resistant coatings on all lenses and 100% protection from UVA/UVB rays